Precision inside measurements for tight bores and through-holes
Three-point inside micrometers, also known as inside micrometers and bore micrometers, provide highly accurate internal measurements for bores, through-holes and other confined areas, enabling reliable diameter and form checks during metalworking. These instruments are available in pistol-grip and compact rod designs, with analogue models featuring verniers and option to fit a dial gauge, while digital versions offer resolutions down to 0.001 mm, data outputs such as USB or RS-232 and advanced functions like absolute and incremental measuring. Accessories such as interchangeable anvils and extensions (100 mm and 150 mm) expand reach into deep bores, and models with microcomputer control even support wireless data transfer for streamlined process integration.
12–20mm Three-Point Internal Micrometer Set 0.001mm Resolution With Setting Ring And 150×Ø11.8 Extension In Case - Metav IndustryLine
Take advantage of the combination of sub-micron resolution (0.001 mm), hardened measuring faces and a compact micro measuring range for consistently reliable bore inspection; order the set directly via Metav Werkzeuge or ask our consultants for application advice. Three-point internal measuring set M312.485 – 12–20 mm, 0.001 mm resolution (Metav IndustryLine) The Three‑point internal measuring set M312.485 is a precision instrument designed for accurate measurement of blind bores and small internal diameters in workshop and inspection environments. High resolution 0.001 mm reading Measuring range 12–20 mm for blind bores Includes setting ring and 150×Ø11.8 mm extension Hardened measuring faces; supplied in case Precision where tiny differences matter This three‑point internal measuring set delivers 0.001 mm resolution with an accuracy of ±0.005 mm, enabling repeatable discrimination of extremely small dimensional deviations. Classified in the micro range (max. measuring range up to 100 mm), the instrument is tailored to tasks where tight tolerances and compact geometry converge, for example in watchmaking components, small housings and blind bore inspections. The three‑point contact principle stabilises the measurement axis, reducing eccentricity and producing a reliable representative diameter for quality control. Durable design for workshop routines Built for regular use, the measuring surfaces are hardened, which reduces wear and preserves measurement fidelity over time. The scale and vernier are matt chrome‑plated, improving legibility while resisting glare and surface damage during handling. The set comprises two measuring members and is supplied with a setting ring and an extension (150×Ø11.8 mm) to reach deeper bores without changing technique. Supplied in a protective case, the instruments remain organised and protected during storage and transport, supporting straightforward shop‑floor workflows. Faster inspections and fewer reworks By combining high resolution with a compact measuring span, the set shortens inspection cycles for small‑diameter features while maintaining traceable outcomes. The setting ring allows quick verification of the instrument’s reference diameter before batch checks, which reduces setup time and lowers the risk of systematic measurement error. For production and maintenance teams this means clearer go/no‑go decisions, reduced rework and a measurable improvement in process stability when integrating the tool into routine quality assurance. For exact application advice or to secure the Metav IndustryLine three‑point internal measuring set M312.485 with 0.001 mm reading for precision bore inspection, contact Metav Werkzeuge in Emmerich for tailored support and procurement. Technical data SKU: M312.485 GTIN: 4054469182261 Set type: Three‑point internal measuring set Facts Measuring range: 12–20 mm Resolution: 0.001 mm Accuracy: 0.005 mm Pieces per set: 2 Weight: 1.3 kg Extension: 150×Ø11.8 mm Special features Three‑point internal measuring principle Suitable for blind bores Scale and vernier matt chrome‑plated Hardened measuring faces Includes setting ring Supplied in protective case FAQ What measuring range and resolution does the set provide? The set measures from 12 to 20 mm with a resolution of 0.001 mm, giving fine control for small‑diameter inspections. Is this measuring set suitable for blind bores? Yes, the three‑point geometry and included extension make the Three‑point internal measuring set M312.485 particularly suitable for measuring blind bores. What components are included in the set? The set includes two measuring members, a setting ring and an extension (150×Ø11.8 mm), all supplied in a protective case. How does the three‑point principle improve measurement? Three contact points centre the tool within the bore and reduce eccentricity, producing a representative diameter with improved repeatability compared with single‑point probes. Are the measuring faces protected against wear? The measuring faces are hardened to increase wear resistance and maintain long‑term measurement stability in routine use. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
13 mm Extension Ø15.5 mm for Rod Internal Micrometer Sets - Metav IndustryLine
Take advantage of a compact 13 mm extension with a Ø 15.5 mm interface that integrates seamlessly with the 310.060 and 310.061 measuring sets; the low mass (0.1 kg) minimises added inertia for repeatable measurements. Order or request further advice via Metav Werkzeuge for quick procurement and compatibility checks. Extension 13 mm, Ø 15.5 mm for 310.060/310.061 — Metav IndustryLine accessory A 13 mm extension (Ø 15.5 mm) designed as an accessory for the 310.060 and 310.061 measuring instrument sets to extend reach for internal measurement tasks. Compatible with 310.060/310.061 measuring sets Compact length 13 mm with Ø 15.5 mm interface Lightweight construction, 0.1 kg for minimal inertia Precise reach with minimal influence on measurements The 13 mm extension provides a short, rigid increase in reach where the primary measuring set requires extra clearance. With a Ø 15.5 mm coupling and a mass of 0.1 kg, the accessory adds only a small moment to the measuring chain, which helps to maintain repeatability and reduces the risk of systematic error introduced by heavy or flexible extensions. The compact geometry is particularly useful when confined access is the limiting factor, enabling internal gaging operations without compromising the stability of the primary instrument. Simplifies workshop logistics and tool matching As an accessory intended for the specified instrument families, this extension reduces procurement complexity by matching interfaces rather than requiring adapters or bespoke solutions. The straightforward compatibility with the 310.060 and 310.061 sets means less inventory variation and faster set-up times during routine checks or production sampling. The small footprint and light weight also make handling and storage uncomplicated, contributing to a smoother workflow and fewer tool-change interruptions on the shop floor. Integrates cleanly into metrology processes Designed for integration into existing measuring procedures, the extension supports consistent results when used as part of calibrated instrument assemblies. The short extension length ensures that deflection and operator influence remain low, supporting rapid verification tasks and spot checks in quality control. Backed by the Metav IndustryLine offering, the accessory aligns with a broader approach to accessible precision tools that balance functional compatibility and practical workshop requirements. Request this Metav IndustryLine extension via Metav Werkzeuge for seamless integration into measuring sets 310.060/310.061 — consult Metav Werkzeuge in Emmerich for procurement and compatibility details at info@metav-werkzeuge.com or +49 2822 7131930 Technical Data Article number: M310.061.1 GTIN: 4054469118864 Weight: 0.1 kg Customs tariff number: 90173000 Category: Zubehör (measuring instrument accessory) Facts Length: 13 mm Diameter: 15.5 mm (interface Ø) ECLASS: 21019104 ETIM: EC002219 Special features Compatible with measuring sets 310.060 and 310.061 Accessory for internal measurement tasks Compact, low-mass extension for reduced measurement influence FAQ Is this extension compatible with other Metav measuring sets? Compatibility is specified for the 310.060 and 310.061 sets; the extension interfaces with those models as indicated by the product designation M310.061.1. What are the exact dimensions of the accessory? The accessory provides a length of 13 mm with an interface diameter of 15.5 mm and a total weight of 0.1 kg. Will the extension affect measurement repeatability? When used with the designated measuring sets, the short, lightweight design minimises added moment and supports repeatable internal measurements. Can this accessory be used for external measurements? The extension is intended to increase reach for internal measurement operations when combined with the appropriate measuring set. How is the extension supplied for easy identification in inventory? The product is listed under GTIN 4054469118864 and article number M310.061.1 for straightforward stock management. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150 mm Extension for Three-Point Internal Measuring Probe Ø23 mm For 30–40 / 40–50 mm Ranges - Metav IndustryLine
Take advantage of the 150 mm extension to reach deep bores with consistent alignment and fast retrofitting into existing measuring setups; combine extended reach, robust M18 connection and Metav-backed supply for reliable workshop throughput — order via Metav Werkzeuge or consult their specialists for compatibility advice. Extension for three-point internal micrometer M312.106 — 150 mm length, Ø 23 mm (M18 thread) by Metav IndustryLine The Extension for three-point internal micrometer M312.106 is an accessory that extends the measuring reach of three-point internal micrometers for deeper bores in inspection and workshop environments. 150 mm extended reach for deep bores Ø 23 mm adapter with M18 thread Compatible with 30–40 and 40–50 mm ranges Reach deep bores without specialised instruments The principal advantage of this extension is its extended reach of 150 mm, which permits measurement in deep or recessed bores without resorting to separate long-reach micrometers. Used as an extension element for three-point internal measuring assemblies, it maintains the original measuring head’s geometry while adding the necessary length for larger components. This reduces handling complexity in the workshop and avoids multiple instrument sets, supporting efficient workflows and predictable measuring results. Secure connection and alignment for repeatable readings A stable interface is essential for repeatable internal measurements. The extension features an M18 thread and an adapter diameter of Ø 23 mm, providing a firm mechanical coupling that minimises radial play and misalignment. When fitted to a three-point internal measuring instrument, the assembly preserves the reference geometry of the measuring anvils so that readings remain consistent across the increased reach. The accessory’s mass (approx. 1.3 kg) contributes to stability during insertion while remaining manageable for standard workshop handling. Fast retrofitting and maintenance-friendly design Designed as a retrofit accessory, the component installs quickly onto existing three-point internal micrometers used for the 30–40 mm and 40–50 mm measuring ranges, cutting downtime during set‑ups. Its simple mechanical interface avoids complex calibration procedures after installation; standard workshop checks are sufficient to confirm concentricity and functional fit. The straightforward design supports routine inspection schedules and keeps maintenance demands low, which is valuable in production or toolroom environments where instrument availability directly affects throughput. Traceable data and workshop supply confidence Product traceability and clear classification assist purchasing and inventory control. The extension is listed under the measuring accessories category and carries a GTIN and tariff classification for logistics and customs processing. Supplied through Metav IndustryLine, it benefits from Metav’s European distribution and quality‑filtering at Emmerich, which helps ensure reliable stock levels and consistent product quality for industrial buyers and trade customers. For tailored technical clarification or to add the Metav IndustryLine extension M312.106 to an order, contact Metav Werkzeuge in Emmerich via info@metav-werkzeuge.com or call +49 2822 7131930 for prompt supply and compatibility guidance. Technical data Article number: M312.106 GTIN: 4054469119373 Tariff code: 90173000 eClass: 21019104 ETIM: EC002219 Core measurements Length: 150 mm Diameter: Ø 23 mm Weight: 1.3 kg Thread: M18 Suitable measuring ranges: 30–40 mm; 40–50 mm Special features Accessory for three-point internal micrometers Category: Measuring instruments / Accessories Brand: Metav IndustryLine Packaging / transport details: not specified Stock keeping unit: M312.106 FAQ Is this extension compatible with three-point internal micrometers in the 30–50 mm bracket? Yes. The extension M312.106 is designed to work with three-point internal micrometers intended for the 30–40 mm and 40–50 mm ranges and extends their measuring reach by 150 mm. Does the extension require a special thread or adapter? The extension uses an M18 thread and an adapter diameter of Ø 23 mm, which provides a secure mechanical fit to compatible three-point internal measuring heads. Will the added length affect measurement accuracy? When correctly installed and aligned, the extension preserves the measuring head geometry; the firm M18 connection and stable mass help maintain repeatable readings with minimal additional error. Is the product traceable for procurement and customs purposes? Yes. The extension is listed with GTIN 4054469119373 and tariff code 90173000 to support logistics and procurement processes. Which SKU identifies this accessory for ordering? Orderers can reference SKU M312.106 under the Metav IndustryLine range when specifying this extension. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150 mm Extension For Three-Point Internal Measuring Screw Ø23 mm For 50–63 / 62–75 / 75–88 / 87–100 mm - Metav IndustryLine
Take advantage of the 150 mm extension and Ø23.4 mm nominal diameter to extend the measuring range of three‑point internal micrometers with secure M21 mounting; order the extension directly via Metav Werkzeuge or consult our specialists for matching system advice. Extension for three‑point internal micrometers M312.107 — 150 mm length, Ø23.4 mm The Extension for three‑point internal micrometers M312.107 provides a rigid, precision extension for internal measurement tasks, increasing reach for bores and deep features in workshop and production environments 150 mm extension length Diameter Ø23.4 mm Fits internal micrometers 50–100 mm ranges M21 thread for secure mounting Increase reach while preserving measuring geometry The 150 mm extension is designed to add reach without compromising the measuring geometry of three‑point internal micrometers. By keeping the contact geometry consistent, the accessory enables reliable internal measurements in deeper bores and cavities where the base instrument alone would not reach. The nominal Ø23.4 mm shaft diameter and recognised M21 thread ensure a positive mechanical connection to compatible instruments, reducing lateral play and preserving the instrument’s original repeatability. This extension is optimised for production environments where access and reproducible contact are decisive for inspection throughput. Practical robustness for workshop and production use Built for everyday handling, the extension balances rigidity with manageable mass (approx. 1.3 kg) so it can be installed and removed quickly while resisting bending under normal measuring forces. The secure thread interface reduces the need for frequent re‑adjustment, helping to maintain cycle times and avoid unnecessary rework. As an accessory intended for three‑point internal measuring systems, it is classified for accessory use in measuring setups and supports efficient metrology workflows in both maintenance and series inspection tasks. Compatibility across common internal ranges Compatibility with standard internal measuring ranges (50–63 mm, 62–75 mm, 75–88 mm and 87–100 mm) makes this extension a versatile addition to measurement benches that rely on modular internal micrometer systems. The component is specifically shaped to integrate with systems that use a three‑point contact arrangement, enabling measurement of stepped bores and deeper features without modifying the primary instrument. Where modularity and interchangeability matter, this extension provides a straightforward means to extend a single micrometer’s usable range. Minimal impact on measurement practice, maximum usability The accessory is intended to preserve the familiar handling and user routine of the parent instrument: mounting via the standard M21 thread keeps operation intuitive, while the defined shaft diameter and length offer predictable mechanical behaviour. Installation and removal require no special tooling beyond the normal handling procedure for internal micrometers, allowing measurement staff to adapt to longer reach tasks with minimal retraining. The design focus is on preserving measurement confidence and keeping process variability low. Contact Metav Werkzeuge today for a quotation or configuration check and secure the M312.107 extension for your measurement setup Technical data Article number: M312.107 GTIN: 4054469161013 Tariff number: 90173000 Manufacturer: Metav IndustryLine Numbers Length: 150 mm Nominal shaft diameter: Ø23.4 mm Thread: M21 Weight: 1.3 kg Compatible measuring ranges: 50–63 mm; 62–75 mm; 75–88 mm; 87–100 mm Special features Accessory for three‑point internal measuring systems Designed to extend measurement reach for internal measurement Category: Accessory (Measuring devices / Accessories) Compact, rigid shaft profile for stable mounting FAQ What measuring ranges does the extension cover? The extension is suitable for internal measuring ranges 50–63 mm, 62–75 mm, 75–88 mm and 87–100 mm and is supplied under SKU M312.107. How is the extension mounted to the micrometer? Mounting is via an M21 thread; the M21 interface provides secure, repeatable attachment compatible with three‑point internal micrometer systems. Will the extension affect measurement repeatability? The extension is designed to preserve the parent instrument’s contact geometry and thus minimise any additional variability introduced by the increased reach. Is the material specified in the product data? The product data set does not specify the extension material. Which product designation should be used when ordering? Use the designation Extension for three‑point internal micrometers M312.107 when placing orders or referencing this accessory. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150 mm Extension for Three-Point Internal Measuring Spindle Ø12 mm, M8 Thread - Metav IndustryLine
Take advantage of the combination of a 150 mm extension length, a Ø12 mm shank and an M8 mounting thread to extend three‑point internal micrometers for deeper bore measurement while maintaining stability and repeatability; order directly via Metav Werkzeuge or consult our product specialists for application advice. Extension for three‑point internal micrometer M312.104 — 150 mm, Ø12 mm (Metav IndustryLine) The Extension for three‑point internal micrometer M312.104 adapts three‑point internal micrometers for reliable deep‑bore measurements in workshop metrology and inspection processes. 150 mm extension length Ø12 mm shank for stable centring M8 thread for secure attachment Compatible with 12–16 and 16–20 mm ranges Extend reach while keeping measuring stability A purpose‑designed 150 mm extension increases the accessible measuring depth without compromising the instrument’s lateral stability. The Ø12 mm shank offers a compact, stiff profile that reduces deflection in longer setups, preserving the original instrument’s repeatability and allowing consistent readings when accessing recessed bores or stepped housings. This makes the extension suitable for production checks and maintenance tasks where deeper internal dimensions must be verified reliably. Secure mounting and repeatable results The integrated M8 thread provides a mechanically robust connection to three‑point internal micrometers and retains the original seating geometry. A secure mechanical interface minimises micro‑movement during measurement cycles, supporting repeatable results in series inspection. For process‑led workshops, the ability to maintain alignment through a positive threaded connection reduces measurement scatter and supports efficient quality control workflows. Practical compatibility for workshop use Designed for the common internal ranges 12–16 mm and 16–20 mm, the accessory pairs with three‑point measuring heads to extend their functional reach. The component’s compact footprint eases handling and storage, while the straightforward installation keeps cycle times low. Where deeper bores or assemblies need quick verification, this extension provides a pragmatic balance between added reach and preserved measurement integrity. Contact Metav Werkzeuge for specification matching and supply of the Metav IndustryLine extension M312.104 — our Emmerich team can advise on fitment and dispatch: info@metav-werkzeuge.com / +49 2822 7131930 Technical Data Article number: M312.104 GTIN: 4054469119359 TARIC / HTS: 90173000 Facts Extension length: 150 mm Shank diameter: Ø12 mm Weight: 1.3 kg Thread: M8 ECLASS: 21019104 ETIM: EC002219 Special features Suitable for three‑point internal micrometers Compatible measuring ranges: 12–16 mm, 16–20 mm Extension geometry: 150 x Ø11.7 (manufacturing dimension) Category: Zubehör (accessory) FAQ How does this extension affect measurement repeatability? The extension is designed to preserve the measuring head’s alignment; when mounted via the M8 thread the component helps maintain repeatable readings by reducing lateral play and deflection during deeper bore measurements. Which internal micrometer ranges is the accessory compatible with? The extension is compatible with three‑point internal micrometer ranges of 12–16 mm and 16–20 mm, allowing the respective measuring heads to reach recessed bores up to the added 150 mm depth. Is the mounting thread standardised? Yes, the accessory uses an M8 threaded interface for secure and standard mechanical attachment to compatible three‑point internal micrometers. What is the effective shank diameter and why does it matter? The shank is specified around Ø12 mm, providing a stiff, compact profile that reduces bending and helps maintain measurement stability over the extended length. Can the extension be used in production inspection cycles? The component is suited to workshop and production metrology where deeper internal dimensions must be checked; its secure mounting and compact shank support repeatable use in inspection routines. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150 mm Setting Gauge for Internal Measurement Lapped Measuring Faces, 0.58 kg - Metav IndustryLine
Take advantage of a compact reference that combines finely lapped measuring faces and a defined 150 mm length to secure reproducible internal measurements with an accuracy of 0.004 mm; order via Metav Werkzeuge or consult our specialists for suitability and delivery options. Setting gauge for internal measurement, 150 mm — finely lapped measuring faces (Metav IndustryLine) A Setting gauge for internal measurement, 150 mm designed as a workshop reference for calibrating and setting internal measuring instruments in metrology and metalworking environments Finely lapped measuring faces 150 mm measurement standard Accuracy to 0.004 mm Reliable precision where it matters The setting gauge serves as a compact reference standard for internal dimensions, providing stability and repeatability thanks to its finely lapped measuring faces. With a stated accuracy of 0.004 mm, the gauge supports tight tolerance work typical in quality control and setup tasks. The explicit numeric accuracy gives a measurable basis for decision-making: it defines the expected reproducibility when the gauge is used as a comparator for inside measuring tools, enabling confident pass/fail judgements during inspection. Designed for everyday workshop metrology Classified in the Standard range (100–300 mm), this 150 mm reference strikes a balance between reach and rigidity that suits general machine‑shop and metalworking tasks. The geometry and surface finish reduce potential measurement scatter and simplify handling at the bench, making the gauge a practical choice for assembly jigs, fixture adjustments and incoming inspection. Clear, domain‑specific terminology describes the benefit: a standard length that is both easy to manoeuvre and sufficiently stiff to keep measurement uncertainty low. Integrates with existing measurement workflows As an accessory for internal measurement, the gauge is intended to be used as a comparator when setting inside measuring instruments and verifying short‑range internal dimensions. Its role as a reference reduces setup time and lowers the risk of cumulative error during multi‑step processes. Supplied under the Metav IndustryLine identity, the product complements a broader metrology offering and supports centralised workshop procurement, contributing to consistent quality across production and inspection tasks. Contact Metav Werkzeuge in Emmerich for technical advice or to arrange delivery details for the Metav IndustryLine 150 mm setting gauge Technical Data Article number: M311.084 GTIN: 4054469119212 eClass: 21170102 Tariff number: 90173000 Facts Measurement length: 150 mm Accuracy: 0.004 mm Category: Accessory for internal measurement Special features Finely lapped measuring faces Reference standard for inside measurement Standard range size suitable for workshop use FAQ What is the primary use of this setting gauge? The setting gauge is intended as a compact reference standard for internal dimensions and is used to set and verify inside measuring instruments in workshop and inspection settings. What measurement accuracy can be expected? The gauge provides an accuracy of 0.004 mm, which defines its reproducibility when used as a comparator for internal measuring tools. Which measurement range classification applies to the product? The product falls into the Standard range (100–300 mm) and is configured as a 150 mm measurement standard suitable for general machine‑shop applications. Can the gauge be used for setting inside micrometers and similar instruments? Yes, the gauge is designed expressly to serve as a workshop reference when setting inside micrometers and other internal measuring instruments Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150 mm Three-Point Extension 16 mm Bore For 20–25/25–30 mm Internal Measuring Screws - Metav IndustryLine
Take advantage of a compact, purpose-built extension that increases the reach of three‑point internal measuring instruments while retaining mounting security and repeatable alignment; the 150 mm, Ø16 mm shank and M10 thread ensure stable extension and straightforward integration with existing metrology fixtures. Order the accessory directly via Metav Werkzeuge or consult the Metav team for application advice. Extension for three‑point internal micrometers — 150 mm, Ø16 mm (Metav IndustryLine) A precision extension for a three‑point internal measuring instrument, designed to extend usable range to 150 mm with a Ø16 mm shank and secure M10 thread for reliable internal measurements 150 mm extension, Ø16 mm shank Compatible with 20–30 mm three‑point internal micrometers M10 thread for secure mounting Secure reach for internal measurements This extension provides a 150 mm working length with a Ø16 mm shank, engineered to extend the reach of three‑point internal measuring instruments without compromising stability. The combination of length and diameter maintains column stiffness to reduce deflection during insertion, resulting in more repeatable internal measurements in bore and cavity applications. The M10 mounting enables a positive mechanical connection that minimises the risk of movement between measurements, supporting consistent inspection routines. Plug‑and‑play integration with existing systems Fitted with a standard M10 thread, the extension integrates directly with compatible three‑point internal measuring fixtures and carriers. This straightforward interface shortens setup time and reduces the need for bespoke adaptors, improving uptime on calibration and inspection benches. The accessory is categorised as a metrology spare part, so it can be added to existing toolsets to increase measuring range without replacing the primary instrument, delivering an efficient upgrade path for workshop metrology. Designed for precision workshops and production lines Classified for small‑range internal work (suitable for measuring ranges around 20–30 mm), the extension is ideal where compact, accurate measurement is required—such as component inspection in precision engineering or quality control in small‑batch production. By increasing reach while retaining alignment fidelity, the accessory supports reliable dimensional control across serial inspections, reducing rework and improving throughput. The design emphasises mechanical stability to help maintain measurement integrity under repeated handling. Practical specification and handling benefits The extension is lightweight yet robust at 1.3 kg, which facilitates handling and positioning in confined bores while still providing a solid feel during mounting. Numeric identifiers and classification values are provided in the technical data below to assist in procurement and inventory management. Where traceable measurement chains are needed, the accessory can be recorded as part of the instrument set to maintain documentation and inspection routines. For tailored advice on fitting the Metav IndustryLine extension and to check compatibility with existing three‑point internal micrometers, contact Metav Werkzeuge in Emmerich: info@metav-werkzeuge.com or +49 2822 7131930 — Metav’s consultants will advise on the optimal setup for workshop or production requirements Technical data Article number: M312.105 GTIN: 4054469119366 Weight: 1.3 kg Thread: M10 Label: Extension for three‑point internal measuring instrument, 150 mm, Ø16 mm Core specifications Length: 150 mm Shank diameter: Ø16 mm Compatible measuring ranges: 20–25 mm, 25–30 mm Tariff number: 90173000 eClass: 21019104 ETIM: EC002219 Compatibility & features Accessory for three‑point internal measuring instruments Extension type: 150 × Ø16 Category: Accessories — measuring equipment Manufacturer brand: Metav IndustryLine FAQ How is the extension secured to a three‑point internal measuring instrument? The extension uses an M10 thread for secure mechanical mounting; this ensures positive engagement and stable alignment with the host three‑point internal measuring instrument. Which measuring ranges does the extension support? The accessory is intended for instruments with internal measuring ranges around 20–25 mm and 25–30 mm, effectively extending reach while preserving measurement stability. Will using the extension affect measurement repeatability? When mounted correctly via the M10 thread and handled with consistent technique, the extension maintains high repeatability by reducing deflection through its Ø16 mm shank and optimised length. Is the extension suitable for serial inspection in a production environment? Yes; the extension is designed to be a robust accessory that increases usable range without replacing primary instruments, supporting efficient serial inspection and inline quality checks. Can the extension be used with different brands of three‑point internal micrometers? Compatibility depends on the instrument’s mounting interface; the M10 thread is a common mechanical standard, but fitment should be confirmed against the specific instrument connection before use. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150-175mm Three-Point Internal Micrometer Digital With ON/ABS/mm-Inch Preset Hold, Hardened Measuring Faces, Supplied In Case - Metav IndustryLine
Benefit from precise, transport-ready measurement: digital readout with mm/inch switching and accuracy ±0.007 mm plus a protective case for safe handling. Order the three-point internal micrometer directly via Metav Werkzeuge or ask our consultants if needed. Three-point internal micrometer — digital display, measuring range 150–175 mm (Metav IndustryLine) The three-point internal micrometer is a digital instrument for fast, repeatable internal-diameter checks in machine and metalwork applications. Digital display with mm/inch and hold High repeatability: accuracy ±0.007 mm Delivery in protective case Reliable precision for everyday workshop inspection The instrument delivers accuracy ±0.007 mm, which places it well within fine inspection tolerances for many production and quality-control tasks. With a measuring range 150–175 mm it fits the Standard class of calipers and micrometres, the length band that balances reach and stiffness for general machine‑ and metal‑shop use. The stated accuracy means a measurement scatter in the single‑digit micrometre range; this reduces rework and supports consistent part acceptance criteria without requiring complex measurement rigs. Digital features that speed up measurement and reduce errors Equipped with a digital display and the full set of ON/0-, mm/inch, ABS, PRESET and HOLD functions, the device simplifies data capture and reduces transcription mistakes during batch checks. The built‑in RB 4 data output enables wired transfer of readings to a data logger or inspection software, supporting traceable records and faster statistical process control. PRESET allows quick zeroing for comparative checks, while HOLD freezes unstable readings for later recording — practical when handling larger specimens or awkward positions. Robust design and transport-ready delivery Hardened contact points ensure long service life under shop conditions: the instrument features hardened measuring faces that resist wear from repeated contact. A measuring depth 140 mm gives access to recessed bores and deeper features without compromising rigidity. Delivery in a protective case helps prevent damage during transport and storage; note that the scope of delivery is without a setting ring, so calibration or a reference standard should be arranged separately if required before first use. Practical fit for inspection benches and toolrooms This digital three‑point internal micrometer is a practical choice for inspection benches, assembly control and first‑off checks where internal diameters must be verified quickly and reliably. The combination of a Standard measuring range and a clear digital interface makes the instrument suitable for toolmakers, quality engineers and maintenance teams who need dependable results with minimal setup. The compact three‑point measuring head aligns automatically in bores, reducing operator influence on repeatability and simplifying measurements on cylindrical components. For reliable, workshop-ready internal measurement choose the Metav IndustryLine three-point internal micrometer and contact Metav Werkzeuge for tailored advice or to arrange supply via info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: M312.258 GTIN: 4054469120003 eCl@ss: 21170335 ETIM: EC003590 Facts Measuring range: 150–175 mm Measuring depth: 140 mm Resolution: 0.001 mm Accuracy: 0.007 mm Special features Digital display with ON/0-, mm/inch, ABS, PRESET, HOLD RB 4 data output Hardened measuring faces Delivery without setting ring Delivery in protective case HS tariff number: 90173000 FAQ What measuring range does the instrument cover? The three-point internal micrometer covers a measuring range of 150–175 mm, suitable for Standard workshop and metalworking tasks. What accuracy and resolution are provided? The device offers an accuracy of ±0.007 mm with a display resolution of 0.001 mm for fine discrimination of internal diameters. Is this instrument suitable for routine inspection in a machine shop? Yes; with its Standard measuring range and hardened contact faces, the micrometer is designed for routine inspection, assembly checks and quality control in machine and metalwork environments. What accessories are included with delivery? Delivery is without a setting ring; the instrument is supplied in a protective case for transport and storage. How can measurement data be exported from the instrument? Measurement values can be transferred via the RB 4 data output and the built‑in digital functions (mm/inch, ABS, PRESET, HOLD) facilitate reliable data collection. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150-175mm Three-Point Internal Micrometer Digital, For Blind-Hole Measurement, IP65 Protection - Metav IndustryLine
Take advantage of the combination of precise three-point contact, a clear digital interface and traceable RB 4 output for reliable inspection of blind holes in medium-size components. Order the instrument directly via Metav Werkzeuge or contact our consultants for application advice. M312.258.S — Three-point internal micrometer, digital, 150–175 mm (Metav IndustryLine) The M312.258.S is a digital three-point internal micrometer engineered for accurate measurement of blind bores in workshop and inspection environments, offering a practical range for standard medium‑sized components. Digital display with mm/inch, ABS and hold Measurement range 150–175 mm Three-point contact for blind-hole measurement RB 4 data output for traceable recording Precise internal measurement of blind bores The instrument uses a three-point contact geometry that centres automatically within a bore to deliver repeatable interior readings. With a measurement span of 150–175 mm, it falls into the standard range for workshop metrology, providing a tested balance between reach and stiffness for fixtures, housings and medium assemblies. The specified 0.007 mm accuracy ensures that dimensional deviations are detected reliably, while the measuring depth 140 mm allows access into substantial blind bores without sacrificing stability. This combination reduces rework and shortens inspection cycles by delivering clear pass/fail orientation for production control. Efficient digital operation and traceable results Equipped with a digital display and function keys (ON/0-, mm/inch, ABS, PRESET and HOLD), the device streamlines readings and reduces transcription errors. The integrated RB 4 data output enables direct transfer of measurements to data acquisition systems for documentation and statistical process control, supporting traceability and auditability of inspection records. The preset and absolute modes simplify repeated sampling tasks, while the hold function freezes unstable readings for improved operator handling – a practical advantage in busy shopfloors where throughput and documentation are equally important. Built for workshop use and dependable handling The construction features hardened measuring faces for wear resistance and longevity in daily metrology routines; the instrument’s mass of 2.8 kg gives it a reassuring feel while supporting stable contact in deeper bores. Delivery omits the setting ring, so calibration accessories should be arranged if ring-based zeroing is required. The tool is particularly suited to blind‑hole tasks and bench inspection stations where a robust, repeatable internal measuring method is required. Manufactured under the Metav IndustryLine umbrella, the device integrates practical ergonomics with measurement integrity to support quality assurance across production and maintenance operations. Contact Metav Werkzeuge for tailored application advice and availability of the Metav IndustryLine three‑point internal micrometer with RB 4 output and digital functions Technical data Article number: M312.258.S GTIN: 4054469158976 Manufacturer: Metav IndustryLine Core measurements Measurement range: 150–175 mm Measuring depth: 140 mm Accuracy: 0.007 mm Weight: 2.8 kg Customs tariff (CN): 90173000 Special features Digital display with ON/0-, mm/inch, ABS, PRESET and HOLD RB 4 data output Three-point internal measurement for blind holes Hardened measuring faces Supplied without setting ring Suitable for medium workshop and inspection tasks FAQ What is the typical application for this instrument? The M312.258.S three-point internal micrometer is intended for precise measurement of blind bores and internal diameters in medium‑sized components where repeatability and centralised contact are required. How accurate are the measurements? The instrument achieves an accuracy of 0.007 mm, suitable for quality control tasks that demand fine resolution across the 150–175 mm measurement span. Does the device output measurement data to a PC? Yes, the tool features an RB 4 data output for connection to data collection systems, enabling traceable recording and integration into inspection workflows. Are calibration accessories included? The device is supplied without a setting ring; zeroing or verification accessories should be provided separately according to the workshop’s calibration procedures. What display and modes are available on the unit? The digital readout includes ON/0-, mm/inch switching, ABS and PRESET modes plus a HOLD function to capture transient readings. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150-175mm Three-Point Internal Micrometer Self-Centring, 0.005mm Accuracy, Replaceable Anvils, Delivered in Case - Metav IndustryLine
Take advantage of the combination of precise 0.005 mm reading, a self‑centring three‑point measuring mechanism and interchangeable measuring inserts to ensure reproducible internal measurements of blind bores in the standard workshop range. Order the instrument directly via Metav Werkzeuge or consult the Metav team for application advice. Three‑point internal micrometer MS908.665 — self‑centring, 150–175 mm range (Metav IndustryLine) The three‑point internal micrometer is an analogue internal measuring instrument designed for reliable measurement of blind bores and internal diameters in the workshop and production environment. Self‑centring three‑point design Measurement range 150–175 mm Analogue reading 0.005 mm resolution Hardened measuring faces, interchangeable insert Reliable metrology for internal diameters and blind bores The three‑point design offers consistent contact on the bore surface, enabling reproducible centring even in deep blind holes. With a measurement range of 150–175 mm this instrument fits the standard class of workshop metrology where reach, stiffness and one‑hand operation are required. The analogue scale provides a clear 0.005 mm reading and an equivalent stated accuracy, which supports routine quality checks and rapid go/no‑go decisions on the shop floor. Practical handling and application benefits for production Interchangeable measuring inserts allow adaptation to differing bore geometries without replacing the whole instrument, reducing downtime and consumable cost. The self‑centring mechanism simplifies alignment and lowers operator variability, which increases throughput and decreases rework. Designed for internal measurements including blind bores, the tool is particularly suitable for machine shops, toolrooms and maintenance departments that require straightforward, rugged measuring devices for repeat measurements. Construction and durability tailored to industrial use Hardened measuring faces reduce wear and maintain measurement fidelity over long service periods; the instrument’s analogue mechanics are engineered for robustness rather than electronic sensitivity. The combination of hardened anvils, an interchangeable insert system and solid construction ensures long‑term stability under workshop conditions and predictable measurement behaviour when performing internal diameter checks on components. Contact Metav Werkzeuge in Emmerich for tailored advice on the MS908.665 three‑point internal micrometer and to arrange delivery from stock — info@metav-werkzeuge.com | +49 2822 7131930 Technical Data Article number: MS908.665 Name: Three‑point internal micrometer (Dreipunkt‑Innenmessschraube) Manufacturer: Metav IndustryLine Core technical data Measurement range: 150–175 mm Reading / resolution: 0.005 mm Accuracy: 0.005 mm Length: 145 mm Analogue instrument Special features Self‑centring three‑point design Hardened measuring faces Interchangeable measuring insert Suitable for blind bores Analogue scale, workshop grade FAQ What measuring range does the MS908.665 cover? The MS908.665 three‑point internal micrometer by Metav IndustryLine covers a measurement range of 150–175 mm. How fine is the resolution and what accuracy is stated? The instrument provides an analogue reading with 0.005 mm resolution and a stated accuracy of 0.005 mm for routine workshop control. Is the design suitable for blind hole measurements? Yes, the three‑point geometry and self‑centring action of this micrometer make it particularly suitable for reliable measurements in blind bores. Can the measuring faces be replaced if worn? The MS908.665 features an interchangeable measuring insert system; hardened faces prolong service life and can be renewed through the insert mechanism. For which workshop tasks is this micrometer intended? The instrument is designed for internal diameter checks in machine shops, toolrooms and maintenance operations where robust, repeatable analogue measurement is required. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150mm Extension Ø15.5mm for Rod Internal Micrometer Sets, Compatible with 310.061 - Metav IndustryLine
Take advantage of the 150 mm extension's compact length and Ø 15.5 mm diameter to extend measurement reach with minimal added weight; the lightweight construction (0.2 kg) keeps handling straightforward while maintaining repeatable positioning. Order the extension directly via Metav Werkzeuge or contact the consultants for compatibility advice. Extension 150 mm, Ø 15.5 mm for 310.061 – Metav IndustryLine accessory The Extension 150 mm, Ø 15.5 mm for 310.061 is an accessory that increases reach for compatible measuring setups, designed for workshop and inspection use. 150 mm extension for added reach Ø 15.5 mm shaft for secure fit Lightweight 0.2 kg for easy handling Compatible accessory for 310.061 Extend reach without compromising stability The 150 mm extension provides a simple, cost‑effective method to increase measuring reach while preserving tool geometry. Fitted to the designated mating instrument, the extension length reduces the need for repeated repositioning of workpieces and shortens inspection cycles. The shaft's Ø 15.5 mm dimension ensures a stable connection that minimises play, translating into more consistent readings and less rework. This practical compatibility supports efficient throughput in routine quality checks. Quick integration and practical workshop benefits Designed as an accessory for existing measurement assemblies, this extension requires no special calibration beyond normal practice and adds negligible handling effort thanks to its 0.2 kg mass. The compact form factor keeps the centre of gravity close to the instrument, aiding one‑hand operation in confined setups. For production environments where rapid changeover and repeatable positioning matter, the extension reduces downtime and supports a smoother workflow by enabling measurements at greater depths or within recessed features without improvised adapters. Reliability backed by a trusted precision partner Sourcing this accessory from Metav IndustryLine brings the reassurance of a European quality filter and a broad spare‑parts inventory. Metav's approach to democratising precision means components like this extension are made available to workshops that require dependable, workaday metrology solutions. The accessory is presented as a practical enhancement rather than a complex upgrade, combining functional compatibility with straightforward handling to support consistent measurement practices across the shop floor. For ordering and compatibility checks contact Metav Werkzeuge in Emmerich; consultants are available to confirm fitment for 310.061 and to arrange delivery directly from the warehouse Technical data Article number: M310.061.S GTIN: 4054469118925 Label: Extension 150 mm, Ø 15,5 mm for 310.061 ECLASS: 21019104 ETIM: EC002219 Manufacturer: Metav IndustryLine Facts Length: 150 mm Diameter: Ø 15.5 mm Weight: 0.2 kg Tariff number: 90173000 Special features Accessory for 310.061 Category: Measuring instruments – Accessories Brand: Metav IndustryLine UID / SKU: M310.061.S FAQ Is this extension compatible with all models? Compatibility is specific to the designated mating instrument; the extension is intended for use with the 310.061 assembly and should be checked against that model before ordering. Does the extension affect measurement accuracy? When fitted correctly to the corresponding instrument, the extension maintains positional stability; the design reduces the need for workpiece manipulation, which can improve overall measurement repeatability. Is additional calibration required after fitting the extension? No special calibration is typically required beyond standard instrument checks; follow normal calibration practice for the measuring system after assembly. What materials and applications suit this accessory? The extension is a mechanical accessory; material suitability depends on the primary measuring instrument and the application rather than the extension itself. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150mm Three-Point Inside Micrometer Digital Touchscreen, Wireless/USB, ISO 17025 Calibrated - Microtech Metrology
Take advantage of the combination of 0.004 mm repeatability, Wireless + USB data output and ISO 17025 calibration for dependable bore inspection; order this three‑point internal micrometer directly via Metav Werkzeuge or consult our specialists for application support. Dreipunkt‑Innenmessschraube — digital internal micrometer with Wireless + USB and touchscreen A digital three‑point internal micrometer designed for precision internal measurements in workshops and quality control, featuring a 6–150 mm measuring range and integrated data connectivity for streamlined inspection workflows. ISO 17025 calibrated with certificate High repeatability: 0.004 mm accuracy Wireless + USB data output Colour 1.54" touchscreen display Precision core for reliable bore measurement The instrument is built as a three‑point internal micrometer, a measuring principle that centres on three contact points to establish a stable datum inside bores and recesses. This geometry reduces eccentricity effects and improves repeatability for serial measurements, which is particularly valuable in component inspection or jig and fixture validation. With a measuring range of 6–150 mm, the tool sits in the Standard category for workshop metrology, offering a practical balance between reach and rigidity for everyday machining and inspection tasks. The delivery includes an ISO 17025 calibration certificate, confirming traceability and enabling immediate use in accredited processes. Connected measurement: faster data capture, fewer errors Digital readout and modern interfaces shift manual transcription to automated logging: the instrument provides Wireless + USB data output and a 1.54" colour touchscreen for clear, immediate readback. The display supports intuitive operation while the digital interface allows direct transfer of measurement results into SPC software or inspection reports, reducing administrative time and human error. Resolution is fine enough for demanding checks, making the gauge suitable for production lines where traceable, timely data is a priority. Integration capability therefore converts measurement accuracy into measurable process efficiency. Comprehensive set and application readiness Supplied as a set of 15 pieces, the package covers the full 6–150 mm span with appropriate measuring elements for stepwise bore assessment. The design focuses on stable contact and repeatable adjustment, delivering the stated 0.004 mm accuracy under controlled conditions and consistent technique. Calibrated to ISO 17025, the instrument arrives with a formal calibration certificate, allowing immediate use in quality plans and audits. The combination of high repeatability, digital output and accredited calibration makes this gauge a pragmatic choice for machine shops, toolrooms and quality laboratories seeking dependable internal measurement capability. Contact Metav Werkzeuge today to discuss the Microtech Metrology three‑point internal micrometer (SKU 133579130) and to arrange tailored advice on integrating calibrated, wireless measurement into your inspection routine. Technical data Article number: 133579130 GTIN: 4061905041754 Manufacturer: Microtech Metrology Data output: Wireless + USB Display: Colour 1.54" touchscreen Digital instrument: yes ISO 17025 calibration: included Facts Measuring range: 6–150 mm Resolution (display): 0.0001 mm Accuracy: 0.004 mm Set pieces: 15 Special features Three‑point internal measuring principle Digital readout with touchscreen Wireless and USB connectivity Supplied with calibration certificate FAQ What measuring range does the instrument cover? The internal micrometer covers a 6–150 mm range, supplied as a complete set of 15 pieces for staged measurement across that span. Is the gauge delivered calibrated for laboratory use? Yes, the micrometer is delivered fully calibrated to ISO 17025 and includes the corresponding calibration certificate. How are measurement results transferred to inspection software? Results can be exported via Wireless + USB interfaces, enabling direct logging into SPC or inspection systems without manual entry. What accuracy and resolution can be expected during typical use? The instrument offers an accuracy of 0.004 mm with a display resolution of 0.0001 mm, suitable for routine high‑precision checks in production and quality control. Which environments or applications suit this micrometer best? Designed for workshop and laboratory inspection, the gauge is ideal for bore and internal feature measurement in machining, toolmaking and QA departments. Manufacturer / Responsible: Microtech, Nizhneyurkovska str., 45a, 04080 Kyiv, Ukraine, tool@microtech.tools
150mm Three-Point Internal Measurement Extension Suitable For M312.146–M312.157, M312.256–M312.267 - Metav IndustryLine
Take advantage of increased measuring reach and dependable mechanical fit to extend the capability of existing three‑point internal measuring sets; the combination of a 150 mm extension and a Ø29 connection ensures smooth integration and reliable repeatability. Order the accessory directly via Metav Werkzeuge or consult our specialists for application advice. Extension 150 mm for three‑point internal measuring — Metav IndustryLine accessory with Ø29 connection and universal series compatibility The Extension 150 mm for three‑point internal measuring is an accessory designed to increase measurement reach for three‑point internal micrometers, compatible with series M312.146–153 and M312.256–267 for extended bore inspections 150 mm extension length Fits Ø29 connection diameter Compatible with M312.146–153 series Robust 0.5 kg extension body Extend reach without compromising measurement integrity The 150 mm extension converts standard three‑point internal micrometers into a practical solution for deeper bores while preserving repeatability and alignment. By adding a purpose‑made extension rather than improvising with improvised adapters, the measuring chain remains concentric and mechanically stable, which reduces radial runout and measurement scatter. This extension is engineered to interface cleanly with the matching three‑point systems, providing a measured increase in reach that is immediately available for production or inspection tasks without changes to established measurement procedures. Seamless fit with existing three‑point systems for efficient workshop use Designed for compatibility with the highlighted M312 series, the extension links directly to the matching heads, enabling quick assembly and minimal downtime. Its Ø29 connection diameter and standardised interface mean the accessory can be combined with several instrument variants from the same family, keeping handling and training simple. At 0.5 kg, the component is balanced for handheld setup yet substantial enough to preserve positional stability during insertion; this balance supports rapid changeovers and consistent results in routine quality control and maintenance cycles. Built for robust handling and predictable inspection workflows This accessory is intended for workshop environments where predictable, repeatable measurements matter. The mechanical design focuses on secure coupling and resistance to light impact or vibration that can occur during everyday use; the result is a component that helps maintain the integrity of the inspection process over many cycles. Choosing a factory‑matched extension reduces the need for makeshift solutions and supports traceable procedures, improving throughput while retaining confidence in measurement outcomes. Contact Metav Werkzeuge for tailored advice on integrating the Metav IndustryLine M312.154 extension into existing three‑point internal measuring sets and for delivery from Emmerich to your workshop Technical Data Article number: M312.154 GTIN: 4054469119601 Label: Verlängerung 150 mm Dreipunkt-Innenmess,312.146-153 kombinierbar Weight: 0.5 kg Measurements Extension length: 150 mm Connection diameter: Ø29 mm Customs tariff number: 90173000 Compatibility & Features Suitable for series M312.146–M312.157 and M312.256–M312.267 Accessory for three‑point internal measuring instruments Category: Zubehör (accessory) eClass: 21019104 ETIM: EC002219 FAQ Is this extension compatible with M312.146 heads? Yes. The extension is compatible with the M312.146–153 range and can be combined with those heads to extend measuring reach; reference SKU M312.154 for ordering. Can the extension be used to measure deep bores and recesses? The 150 mm add‑on increases the measureable depth for three‑point internal measuring assemblies, making it suitable for deeper bores where the original instrument reach is insufficient. How is the extension mounted to the measuring instrument? The extension uses the standard Ø29 connection interface to couple mechanically with the matching three‑point heads; assembly is a straightforward mechanical fit without special tools. Does the extension require calibration on its own? The extension is a mechanical accessory; calibration applies to the measuring instrument. For measurement traceability and formal certification requirements, consult Metav Werkzeuge regarding the calibration status of the complete measuring chain. What are the physical dimensions and weight? Length is 150 mm, connection diameter Ø29 mm and the component weight is 0.5 kg, providing a balance between handling convenience and mechanical stability. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150–175mm Three-Point Inside Micrometer Self-Centring, 0.008mm Accuracy, Supplied in Case - Metav IndustryLine
Take advantage of the combination of self‑centring three‑point contact, measuring range 150–175 mm and accuracy ±0.008 mm for consistent internal diameter checks in workshop and inspection routines. Order the instrument directly via Metav Werkzeuge or consult the Metav team for application advice. Three‑point internal micrometer M836.721 — Self‑centring precision, 150–175 mm (Metav IndustryLine) The three‑point internal micrometer is a precision gauge designed for reliable internal diameter measurement in production, inspection and toolroom environments, featuring a self‑centring anvil system for repeatable centring and analogue vernier reading for straightforward interpretation. Self‑centring three‑point anvil design Accuracy ±0.008 mm Reading graduation 0.005 mm Hardened measuring faces for wear resistance Reduce rework with reproducible centring The three‑point contact system provides automatic centration of the measured bore, which significantly reduces variation between successive readings. By combining self‑centring geometry with a tight accuracy ±0.008 mm, the instrument supports quality control processes where repeated internal diameter checks must be both fast and dependable. This benefit translates directly into fewer rejects and lower rework rates in serial production. Clear analogue measurement for robust environments As an analogue instrument with a vernier-style graduation, the gauge offers a reading of 0.005 mm, enabling precise readings without dependence on batteries or electronics. This simplicity makes the tool well suited to workshop benches and inspection tables where robustness and immediate usability are priorities. The mechanical display is easy to maintain and avoids downtime related to electronic faults. Designed for longevity under frequent use The measuring faces are hardened, ensuring resistance to abrasion and preserving accuracy over prolonged use. The construction is geared towards repeated internal measurements in metalworking and fabrication contexts; hardened contact surfaces and a stable spindle minimise wear-induced drift and extend the service life of the instrument. Practical operation and interpretation Operation follows familiar micrometer practice: the three anvils expand against the bore and centre automatically, while the spindle and vernier provide the final reading. The vernier division of 0.005 mm allows technicians to interpret results quickly; for users new to vernier scales, the simple alignment method offers a clear path from raw measurement to documented value without complex conversion steps. Suitable for workshop and inspection workflows With a measuring range of 150–175 mm, the instrument fills the mid‑range need for internal diameter verification commonly required in tooling, fixtures and component inspection. Its combination of range and repeatable centring makes it an efficient choice for batch inspections where one gauge can cover several nominal sizes without sacrificing stiffness or handling comfort. Integrating the gauge into quality management The stable mechanical design and defined accuracy simplify traceability in routine checks and help to establish consistent measurement routines on the shop floor. Documentation of measurement tasks becomes more reliable when instruments deliver predictable performance; the three‑point internal micrometer supports such traceable inspection practices through its repeatable contact geometry and robust readout. For specification guidance or to secure the M836.721 for your inspection bench, contact Metav Werkzeuge for expert advice and order support: info@metav-werkzeuge.com, +49 2822 7131930 Technical data Article number: M836.721 GTIN: 4061905040986 Manufacturer: Metav IndustryLine eClass: 21170335 ETIM: EC003590 Facts Measuring range: 150–175 mm Accuracy: ±0.008 mm Reading / graduation: 0.005 mm Instrument type: Analogue internal micrometer Special features Three‑point self‑centring anvil Hardened measuring faces Designed for internal diameter measurement Analogue vernier operation FAQ How accurate is this internal micrometer? The three‑point internal micrometer delivers an accuracy of ±0.008 mm, with a vernier reading to 0.005 mm, making it suitable for routine inspection and workshop control tasks. What measuring range does the instrument cover? The M836.721 covers a 150–175 mm range, intended for medium‑sized bores commonly encountered in tooling and component inspection. Why use a three‑point design instead of two anvils? A three‑point arrangement centres automatically in the bore, improving repeatability and reducing operator‑dependent eccentricity compared with two‑point gauges. Is the gauge suitable for daily workshop use? Yes. The hardened measuring faces and analogue construction are well matched to frequent use, providing wear resistance and simple maintenance without electronic dependencies. How is a reading taken on the vernier? Rotate the spindle until the three anvils contact the bore and read the main scale together with the vernier division; the vernier provides the 0.005 mm fraction to complete the measurement. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150–175mm Three-Point Internal Measuring Calliper With Carbide Measuring Faces, Ratchet, Supplied In Case - Metav IndustryLine
Take advantage of a robust, workshop‑ready internal gauge that combines a three‑point measuring system, wear‑resistant carbide faces and a consistent ratchet stop for reproducible results; order the instrument directly via Metav Werkzeuge or consult our specialists for application advice. M312.148 Three‑point Internal Micrometer — 150–175 mm range, carbide measuring faces (Metav IndustryLine) The M312.148 is a three‑point internal micrometer designed for precise internal diameter measurement in machine shops and quality assurance environments. Three‑point measuring mechanism Carbide measuring faces for wear resistance 150–175 mm measuring range Ratchet stop for uniform measuring force High precision for repeatable internal measurement The instrument’s three‑point contact system provides centring and repeatability that conventional two‑point gauges rarely achieve, making it suitable for internal bores and stepped diameters. With a reading of 0.005 mm and an indicated accuracy of 0.007 mm, this mechanical gauge sits in the higher precision class for analog internal measuring tools; the combination of fine resolution and tight error band reduces rework and supports reliable pass/fail decisions on the shop floor. Durable construction and consistent operation Built with carbide measuring faces, the gauge resists wear from repeated contact in production use, prolonging service life and stabilising measurement over time. The scale and vernier are matt chrome‑plated, improving contrast and corrosion resistance under typical workshop conditions. A ratchet stop ensures a consistent measuring force, which lowers operator influence on results and simplifies operator training. The instrument is supplied in a protective transport case and is delivered without a setting ring. Practical range and workshop suitability Classified as a standard‑range instrument (max measuring range up to 300 mm), the micrometer’s 150–175 mm span and measuring depth 140 mm cover common internal diameters encountered in general machining, fixture assembly and quality control. As an analogue vernier device it offers robust operation where simple, proven mechanics are preferred over electronics, and it integrates easily into existing inspection workflows while delivering clear, traceable readings. For procurement or technical advice on the Metav IndustryLine M312.148 three‑point internal micrometer, contact Metav Werkzeuge in Emmerich by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930 — our product specialists will assist with selection and delivery. Technical data SKU: M312.148 GTIN: 4054469119540 Tariff number: 90173000 EClass: 21170335 ETIM: EC003590 Core specifications Measuring range: 150–175 mm Measuring depth: 140 mm Reading: 0.005 mm Indicated accuracy: 0.007 mm Materials and features Three‑point internal measuring instrument Carbide measuring faces Scale and vernier matt chrome‑plated Ratchet stop for repeatable force Analogue vernier operation Delivered in a protective transport case Supplied without setting ring FAQ What measuring range does this instrument cover? The M312.148 covers an internal measuring range of 150–175 mm, suitable for standard workshop applications. Are the measuring faces durable for production use? Yes, the gauge features carbide measuring faces, which provide high wear resistance for repeated production measurements. Does the product include a setting or calibration ring? The instrument is delivered without a setting ring; calibration or adjustment accessories must be ordered separately if required. What type of readout does the instrument use? This is an analogue vernier instrument with a reading of 0.005 mm and an indicated accuracy of 0.007 mm. Is the instrument supplied with protective packaging? The M312.148 is supplied in a protective transport case to safeguard the instrument during storage and transit. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150–175mm Three-Point Internal Micrometer For Blind Holes With Carbide Measuring Faces, Ratchet, Supplied In Case - Metav IndustryLine
Take advantage of the combination of a three-point measuring system, carbide measuring faces and a robust ratchet stop for reliable blind-hole measurements in production environments. Order the instrument directly via Metav Werkzeuge or consult our specialists for specification support. Three-point inside micrometer M312.148.S — 150–175 mm range, carbide measuring faces (Metav IndustryLine) The Three-point inside micrometer M312.148.S is an analogue internal measuring instrument designed for precise measurement of blind holes in machine and toolmaking applications, providing dependable readings across the 150–175 mm range. Three-point system for blind-hole measurement Carbide measuring faces for wear resistance Ratchet stop for consistent measuring force Analogue scale, accuracy 0.007 mm Accurate blind-hole measurement with a three-point system The three-point measuring mechanism ensures that contact across the diameter is evenly distributed, which stabilises the gauge during measurement and reduces centring errors common with two-point designs. Combined with carbide measuring faces, the device retains its geometry under repetitive use, providing a consistent 0.007 mm accuracy that supports tight production tolerances. This setup is particularly effective for internal diameters where access is limited and where repeatable positioning is essential for process control. Built for workshop conditions and repeatable results A hardened, matt-chrome plated scale and vernier deliver a clear analogue reading that avoids electronic sensitivity in harsh environments; the incorporated ratchet stop enforces a uniform measuring force to reduce operator-induced deviation. The instrument’s measuring depth of 140 mm allows access into deeper blind holes while the solid construction balances rigidity and handling for everyday shop-floor use. The absence of an adjustment ring is noted in the scope of delivery and should be considered when planning calibration or ring-based comparators. Practical benefits and typical applications Classified within the standard range for internal gauges, this three-point micrometer is suitable for workshop and production settings in general engineering, toolmaking and quality control where internal diameters between 150 and 175 mm are common. The analogue design demands minimal maintenance and excels where electromagnetic interference or battery dependence are concerns. Delivered without an adjustment ring, the instrument is nonetheless ready for immediate integration into routine inspection tasks and is ideal for repeat checks on blind-hole bores in components and fixtures. For dependable blind-hole measurement in the workshop, choose the Metav IndustryLine three-point inside micrometer and contact Metav Werkzeuge for order and specification assistance at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: M312.148.S GTIN: 4054469158709 ECLASS: 21170335 ETIM: EC003590 Tariff number: 90173000 Numbers / Core technical data Measuring range: 150–175 mm Accuracy: 0.007 mm Measuring depth: 140 mm Weight: 3.5 kg Reading type: analogue Design / Special features Three-point measuring system Carbide measuring faces (HM) Ratchet stop Delivery without adjustment ring Scale and vernier matt chrome-plated Designed for blind-hole (sackloch) measurement FAQ How does the three-point system improve blind-hole measurements? The three-point arrangement of the M312.148.S centres itself in the bore and produces a stable contact condition, improving repeatability for blind-hole diameters compared with two-point gauges. Is the instrument suitable for shop-floor use in production? Yes, the Metav IndustryLine three-point inside micrometer is built for workshop conditions: its matt-chrome scale, ratchet stop and carbide measuring faces make it robust for regular use in production inspections. Does the delivery include an adjustment ring or calibration certificate? The delivery of the M312.148.S is specified without an adjustment ring; calibration certificates are not stated in the product data, so calibration arrangements should be verified with Metav Werkzeuge if required. What depth of blind-hole can be measured reliably? The instrument provides a measuring depth of 140 mm, enabling access to fairly deep blind holes within the specified 150–175 mm measuring range. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
150–250mm Three-Point Internal Micrometer Digital Touchscreen, ISO 17025 Calibrated Wireless/USB - Microtech Metrology
Take advantage of the combination of industrial-grade accuracy ±0.005 mm, integrated Wireless + USB data output and an included ISO 17025 calibration certificate for reliable, traceable internal-diameter inspection. Order the device directly via Metav Werkzeuge or consult their specialists for application-specific advice and delivery options. Three-point inside micrometer — Digital inside micrometer with colour touchscreen and wireless data transfer (Microtech Metrology) A three-point inside micrometer designed for precise internal-diameter measurement in workshop and quality-control environments, offering digital readout and straightforward data export for efficient inspection workflows. Calibrated to ISO 17025 standard Measurement range 150–250 mm High precision ±0.005 mm accuracy Wireless + USB data output Measure reliably across standard workshop ranges The micrometer delivers industrial-grade precision (±0.005 mm) for internal diameters within the 150–250 mm span, a range that corresponds to the standard workshop category for versatile inspection tasks. The instrument’s three-point measuring head provides stable centring on bore surfaces, reducing measurement scatter and lowering rework rates. The measuring depth 250 mm ensures reach into deeper bores while retaining the stiffness required for repeatable results, making it suitable for component production, jigs and fixtures. Integrate digital capture to speed inspection cycles Equipped with a colour 1.5" touchscreen and a microcomputer, the instrument simplifies setup and on-screen verification of readings; the Wireless + USB data outputs enable direct digital transfer to logging systems or SPC workflows, cutting manual transcription errors and accelerating reporting. The included adjustment ring supports fine mechanical setup before electronic capture, so operators benefit from a hybrid workflow that combines familiar mechanical handling with contemporary data connectivity. Calibrated delivery and audit-ready documentation The tool is delivered fully calibrated to ISO 17025 with a calibration certificate included, providing audit-ready traceability for internal quality systems and external audits. This documented calibration supports process confidence and helps meet industry inspection requirements without further onsite calibration steps. The integrated microcomputer control and three-point contact concept contribute not only to measurement consistency but also to simpler operator training and quicker first-off approvals on the production line. Contact Metav Werkzeuge for a technical consultation to verify that the Microtech Metrology three-point inside micrometer with ISO 17025 certificate matches the inspection requirements and to arrange prompt delivery through Emmerich Technical data Article number: 133725010 GTIN: 4061905074301 Manufacturer: Microtech Metrology Numbers / core technical data Accuracy: ±0.005 mm Measuring range: 150–250 mm Measuring depth: 250 mm Display: Colour 1.5" touchscreen Data output: Wireless + USB Special features Digital indicator with microcomputer control Three-point measuring head for stable centring Adjustment ring included Delivered calibrated to ISO 17025 with certificate FAQ How accurate is the measurement capability of this instrument? The instrument achieves an accuracy of ±0.005 mm, as supplied by Microtech Metrology, and is intended for tight-tolerance internal-diameter checks within the stated range. Does the micrometer arrive with a calibration certificate? Yes. This micrometer is delivered fully calibrated to ISO 17025 and includes the calibration certificate from Microtech Metrology. What data interfaces are available for digital capture? Data is exported via Wireless + USB outputs, enabling straightforward transfer of readings from the micrometer to data-collection or inspection systems. Which measuring range and depth are covered? The device covers internal diameters from 150 to 250 mm with a measuring depth of 250 mm, suited to standard workshop inspection tasks. Is the instrument suitable for production-line inspection and documentation? Yes. The combination of digital display, data output and ISO 17025 calibration makes the micrometer appropriate for production-line checks and traceable documentation. Manufacturer / Responsible: Microtech, Nizhneyurkovska str., 45a, 04080 Kyiv, Ukraine, tool@microtech.tools
152.4 mm Extension for Three-Point IMS 12–16/16–20 mm, Ø11.8 mm - Metav IndustryLine
Take advantage of the combination of precise fit, extended reach and reliable mounting to measure recessed features with confidence; the extension’s 152.4 mm length and Ø 11.8 mm stem give stable support for three‑point probes and make integration into existing setups straightforward. Order the extension directly via Metav Werkzeuge or ask the consultants for compatibility advice. Extension for three‑point IMS 12–16 / 16–20 mm — 152.4 mm length, Ø 11.8 mm (Metav IndustryLine) The Extension for three‑point IMS 12–16 / 16–20 mm is an accessory that increases probe reach for precise, repeatable measurements in narrow or recessed components and is designed for use with compatible three‑point IMS measuring systems. Precision fit Ø 11.8 mm stem 152.4 mm reach for recessed features M8 thread for secure mounting Lightweight construction at 0.2 kg Measure recessed features with consistent repeatability The extension delivers a controlled increase in reach while maintaining alignment between probe and workpiece. Its 152.4 mm length extends access into deep bores and recessed geometries, while the Ø 11.8 mm stem ensures a snug, low‑play fit in the probe holder. For workshop applications that demand repeatable contact points, this accessory reduces the need for complex fixturing and speeds up inspection cycles without compromising the integrity of the measurement process. Secure fixing and mechanical reliability for industrial use A standard M8 mounting thread provides a mechanically secure connection that resists loosening during handling and measurement. The extension’s compact mass (approx. 0.2 kg) keeps inertia low, which helps preserve probe responsiveness and repeatability during sequences of successive measurements. This mechanical reliability supports rational workflows by reducing re‑set times and avoiding time‑consuming recalibration between short production runs. Suited to the micro measurement category and common three‑point ranges Classified for the micro measurement range, the accessory matches measuring setups covering the 12–16 mm and 16–20 mm three‑point probe ranges and is therefore appropriate for fine mechanical and small‑part inspection tasks. By matching the probe’s intended measuring band, the extension keeps measurement geometry within expected tolerances and supports consistent results across batches and operators. Practical workshop benefits and compatibility notes Designed as an accessory for three‑point IMS probes, the extension integrates with existing metrology equipment to expand capability without replacing the primary instrument. Its standardised interface allows simple installation and repeatable positioning, which decreases setup complexity and improves throughput. For procurement planning, this approach delivers a cost‑effective enhancement to existing inspection rigs while preserving investment in calibrated probes. Contact Metav Werkzeuge today to confirm compatibility for your three‑point IMS system and to order the Metav IndustryLine extension M312.331; our consultants in Emmerich will advise on integration and delivery — eMail info@metav-werkzeuge.com, Tel +49 2822 7131930 Technical data Article number: M312.331 GTIN: 4054469178516 Category: Zubehör Manufacturer: Metav IndustryLine Facts Length: 152.4 mm Diameter: 11.8 mm Thread: M8 Weight: 0.2 kg Zolltarifnummer: 90173000 eClass: 21170613 ETIM: EC002219 Special features Suitable for measuring ranges 12–16 mm and 16–20 mm Accessory for three‑point IMS probes Lightweight construction for minimal inertia FAQ Is this extension compatible with standard three‑point IMS probes? Yes. The extension is designed for three‑point IMS probe assemblies covering the 12–16 mm and 16–20 mm ranges and mounts via a standard M8 thread for secure connection. Will the extension affect measurement repeatability? When fitted correctly to a compatible probe holder, the extension preserves repeatability by keeping probe alignment; its slim Ø 11.8 mm stem and controlled length minimise play and deflection during typical workshop use. What mounting interface is required? A standard M8 threaded interface is required for installation; the extension was produced to mate with common three‑point IMS holders used in precision measurement set‑ups. Is the extension suitable for handheld use or only for fixed fixtures? Its lightweight construction (approx. 0.2 kg) makes it practical for both careful handheld positioning and use in fixed fixtured inspection stations, depending on the application and operator technique. Can this accessory be used to extend probes for deep bores and recesses? Yes. The 152.4 mm reach is aimed at accessing recessed features and deep bores where the base probe cannot reach while maintaining reliable contact geometry. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
152.4 mm Extension for Three-Point IMS 20–25 / 25–30 mm, Ø 15.8 mm - Metav IndustryLine
Take advantage of the combination of extended reach, secure M10 connection and precise dimensional fit for efficient inspection routines; order the extension directly via Metav Werkzeuge or ask our consultants if needed. Extension for three‑point internal measuring system M312.332 — 152.4 mm length, Ø 15.8 mm (Metav IndustryLine) The Extension for three‑point internal measuring system M312.332 is an accessory designed to extend the reach of three‑point internal probes for the 20–30 mm measuring ranges, enabling precise positioning in confined inspection geometries. Extension for three‑point internal probes Length 152.4 mm for extended reach Diameter 15.8 mm with M10 thread Compatible with 20–30 mm measuring ranges Reach confined bores and pockets with repeatable geometry The extension rod delivers a controlled increase in probe reach without compromising alignment: with a length of 152.4 mm and an outer diameter of 15.8 mm, it allows established internal measuring setups to access deeper features while maintaining probe stability. As an accessory for three‑point internal measuring systems, the component ensures that the original probe geometry is preserved and that measurements remain comparable across repeated checks. The measurable dimensions and threaded connection reduce uncertainty during fixture changeover and support efficient in‑line inspection. Secure mechanical interface for consistent results A standard M10 thread provides a familiar and robust mechanical interface to existing probe mounts and adapters. The threaded connection ensures low play and quick assembly, which improves repeatability in tight production cycles. With a mass of approximately 0.3 kg, the extension balances rigidity and handling: it is heavy enough to damp minor vibrations but light enough for easy installation. These characteristics translate into fewer setup iterations and a higher yield from first‑pass inspections. Seamless integration into inspection workflows Designed as a practical accessory rather than a bespoke component, the extension integrates with common three‑point internal measuring fixtures for 20–25 mm and 25–30 mm probe arrangements. The product supports faster tooling changes and reduces downtime when different measuring ranges are required on the same machine or gauge set. Backed by the Metav IndustryLine range, this accessory contributes to a predictable supply chain and consistent quality control in workshops and inspection departments. Contact Metav Werkzeuge to confirm compatibility with existing three‑point measuring fixtures and to arrange supply of the M312.332 extension; consultants in Emmerich are available by phone or e‑mail to advise on integration and inventory Technical data Article number: M312.332 GTIN: 4054469178523 Manufacturer: Metav IndustryLine SKU: M312.332 Category: Zubehör ETIM: EC002219 eClass: 21170613 Harmonised tariff code: 90173000 Core dimensions and identifiers Length: 152.4 mm Diameter: 15.8 mm Weight: 0.3 kg Thread: M10 Compatibility and features Accessory for three‑point internal measuring systems Suitable for measuring ranges 20–25 mm and 25–30 mm Intended for use in inspection and gauge setups Category: Measuring instruments — accessories FAQ Is this extension compatible with existing three‑point internal probes? Yes. The extension M312.332 is designed for three‑point internal measuring systems and fits probe arrangements for the 20–25 mm and 25–30 mm measuring ranges. What are the exact dimensions of the extension? The extension has a length of 152.4 mm, an outer diameter of 15.8 mm and a weight of approximately 0.3 kg. Which thread is used to attach the extension? Attachment is via an M10 thread, a standard interface for many probe mounts and adaptors. Can the extension be used to reach deeper bores without altering probe geometry? Yes. The component extends probe reach while preserving the probe’s relative geometry, supporting repeatable internal measurements. Who supplies this accessory and what is the product code? The accessory is supplied by Metav IndustryLine and is listed under the article number M312.332. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
152.4 mm Extension for Three-Point IMS, Ø 23.5 mm, Fits 50–63; 62–75; 75–88; 87–100 mm Calipers - Metav IndustryLine
Take advantage of an extended measuring reach combined with robust mounting: the extension delivers 152.4 mm of added length and a 23.5 mm diameter interface with an M21 thread, enabling simple adaptation of three‑point internal measuring rigs for internal ranges from 50 to 100 mm. Order the extension via Metav Werkzeuge or consult our team for adaptation guidance. Extension for three‑point internal measuring system (IMS) — 152.4 mm length, D 23.5 mm (Metav IndustryLine) The Extension for three‑point internal measuring system (IMS) adds controlled reach to internal measuring setups, providing a 152.4 mm long adapter that keeps measuring geometry stable across mid‑range bores 152.4 mm extension length for extended reach Compatible with M21 thread connections Fits internal ranges 50–100 mm Reliable access into confined bores while preserving alignment The extension supplies a consistent, repeatable means of reaching deeper or recessed internal diameters without modifying the base measuring head. With a defined outer diameter of 23.5 mm and a fixed length of 152.4 mm, the adapter limits lateral play at the interface and helps maintain the original contact geometry of the internal measuring device. This stability reduces the need for repeated fixture adjustments and supports faster inspection cycles when several depths must be checked in sequence. The accessory integrates into the measuring chain as a dedicated spacer rather than a makeshift extension, improving process repeatability. Seamless integration with three‑point systems and common workshop ranges Delivered with an M21 mounting thread, the component interfaces with three‑point internal measuring systems that accept this connection standard. It is specified for internal diameter applications spanning the typical workshop bands 50–63 mm, 62–75 mm, 75–88 mm and 87–100 mm, allowing the same measuring head to cover multiple bore sizes through rapid changeover. The adapter’s mass (1.3 kg) contributes to a balanced assembly in many bench and fixture arrangements, reducing the influence of unwanted vibrations during manual gauging or light automated cycles. Designed for dependable use in inspection and production environments As a purpose‑built accessory from Metav IndustryLine, the extension focuses on functionality and integration rather than on additional user calibration or complex interfaces. The simple threaded connection preserves the familiar handling and maintenance routines of standard measuring systems, while the clearly defined geometry supports traceable setups in quality control workflows. When used as part of a controlled measuring process, the adapter helps to shorten setup time between diameters and keeps inspection throughput predictable under routine workshop conditions. Contact Metav Werkzeuge in Emmerich for technical clarification and supply of the Metav IndustryLine extension; email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss compatibility and delivery options Technical data Article number: M312.334 GTIN: 4054469178547 Manufacturer: Metav IndustryLine Weight: 1.3 kg Thread: M21 Length: 152.4 mm Diameter: 23.5 mm Facts Weight — 1.3 kg Length — 152.4 mm Diameter — 23.5 mm Thread type — M21 Suitable internal ranges — 50–63 mm, 62–75 mm, 75–88 mm, 87–100 mm Special features Extension for three‑point internal measuring systems Designed for mid‑range bore adaptation Category: Accessory (Zubehör) Intended for workshop and inspection use FAQ Is this extension compatible with all three‑point internal measuring systems? Compatibility depends on the mounting interface; the extension uses an M21 thread and is designed for three‑point internal measuring systems that accept this connection and the listed bore ranges. Which internal diameters can be measured when this extension is fitted? When used with compatible three‑point systems, the adapter supports the internal diameter bands 50–63 mm, 62–75 mm, 75–88 mm and 87–100 mm as specified for the product. What mounting and handling considerations apply? The extension attaches via an M21 thread; attention to correct torque and alignment is advised to preserve contact geometry and repeatability during inspection routines. Will the extension affect measuring accuracy? The adapter is intended to preserve the original measuring geometry; correct mounting and stable fixturing limit additional sources of error, but final accuracy depends on the complete measuring chain and calibration practice. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
152.4mm Extension for Three-Point IMS 30–50mm, D 23.5mm - Metav IndustryLine
Take advantage of the combination of extended reach and secure M18 mounting for reliable internal inspections; the 152.4 mm length and Ø 23.5 mm profile enable access to deeper bores while maintaining stability. Order the extension directly via Metav Werkzeuge or consult our technical advisers for compatibility checks. Extension for three-point IMS 30–40 / 40–50 mm — 152.4 mm length, Ø 23.5 mm (Metav IndustryLine) The Extension for three-point IMS 30–40, 40–50 mm is an accessory designed to extend the probing range of three-point internal measuring systems, enabling inspection of deeper bores and internal features in production and quality-control environments. 152.4 mm extended reach Ø 23.5 mm mounting profile M18 threaded connection for secure fit Compatible with 30–50 mm three-point IMS Reach deeper bores without compromise Extending the probing range by 152.4 mm allows internal measurements that would otherwise require disassembly or a specialised probe. The extension rod is engineered to preserve the probe’s alignment; the Ø 23.5 mm profile provides a stable contact interface that reduces bending and lateral play. As a result, inspection routines become more efficient and less disruptive to production, saving time on part handling and machine downtime. The accessory’s design supports consistent measuring geometry so that repeatability is prioritised over makeshift solutions. Preserves alignment for repeatable measurement results A secure, threaded connection is crucial when adding length to a probe. The M18 thread ensures a firm mechanical interface between the main measuring head and the extension, reducing the risk of loosening or misalignment during use. At approximately 0.5 kg, the component adds reach without excessive mass, limiting additional dynamic effects on the measuring system. For quality-control workflows, this stability translates into fewer rechecks and more reliable pass/fail decisions, improving throughput while maintaining traceable measurement integrity. Workshop-ready accessory that integrates smoothly Supplied as a straightforward accessory for three-point internal measuring systems, this extension is intended for fast integration into existing setups. Compatibility with the 30–40 and 40–50 mm ranges makes it a practical choice for workshops and inspection benches that frequently handle small to medium bore diameters. Backed by the reliability of Metav IndustryLine, the component supports a pragmatic approach to precision: extend capability where needed instead of investing in a full new probe set. The robust mounting concept and compact profile make handling and storage simple, while enabling technicians to keep inspection processes lean and consistent. Contact Metav Werkzeuge today for a tailored compatibility check and order the Metav IndustryLine extension M312.333 with assured delivery from Emmerich. Technical data Article number: M312.333 GTIN: 4054469178530 Category: Accessories (Zubehör) ECLASS: 21170613 ETIM: EC002219 Facts Length: 152.4 mm Diameter: 23.5 mm Thread: M18 Weight: 0.5 kg Customs tariff number: 90173000 Special features Accessory for three-point internal measuring system (IMS) Compatible with 30–40 mm and 40–50 mm IMS ranges Secure threaded mounting for reduced measurement uncertainty Designed for production and quality-control environments FAQ What does this extension do and when is it used? The extension increases the reach of a three-point internal measuring system, enabling measurements in deeper bores where the standard probe cannot reach; it is ideal for production and inspection tasks that require extended access. Which probe ranges are compatible with the extension? This accessory is compatible with three-point IMS ranges for 30–40 mm and 40–50 mm and is intended to extend those probe configurations without altering the measuring head geometry. How is the extension fixed to the measuring system? The extension uses an M18 threaded connection to ensure a secure, vibration-resistant fit when assembled with the three-point internal measuring system. What is the article number for ordering and identification? Order or reference the extension by article number M312.333 (GTIN 4054469178530) when enquiring about compatibility or placing an order. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
16-20 mm Three-Point Internal Micrometer With Measured Drum And Scale, IP65 - Metav IndustryLine
Benefit from high repeatability and robust workshop protection: the micrometer’s digital readout, three‑point measuring system and IP65 rating deliver reliable blind‑bore measurements with ±0.005 mm accuracy. Order the instrument directly via Metav Werkzeuge or ask our consultants for application advice. Three‑point internal micrometer M312.234.M — digital instrument with IP65 A Three‑point internal micrometer M312.234.M designed for precise measurement of blind bores and small internal diameters in the 16–20 mm range. Digital display with ABS/INC/UNIT functions Three‑point measuring system for concentric contact Accuracy ±0.005 mm for high repeatability IP65 protection for workshop environments Accurate internal measurement for critical bore tolerances The micrometer combines a three‑point measuring system with a finely graduated measuring drum to deliver stable contact around the circumference of a bore, reducing eccentricity errors common with two‑point probes. The instrument’s accuracy of ±0.005 mm places it in the high‑precision bracket suitable for quality control tasks where small deviations matter. The digital display supports ABS/INC and unit selection, allowing quick transcriptions and fewer manual conversions. These technical characteristics translate into measurable time savings during inspection routines and fewer rework cycles on production parts. Rugged design and calibrated readiness for the workshop Constructed with a matt‑chrome plated scale and vernier for durable legibility, the micrometer meets DIN 863 standards and is supplied with a setting ring and an extension (150×Ø11.7) for flexible use in deeper or awkward bores. The IP65 rating ensures reliable performance in environments with dust and coolant exposure, while the total weight and compact 80 mm length make the instrument easy to handle for repetitive measurements. The inclusion of a clear scale on the drum supports a fast visual check, complementing the electronic readout for redundancy during routine inspections. Designed for blind‑bore workflows and data capture Specifically suited to blind bores, this instrument covers the measurement range 16–20 mm, a category commonly required for precision components and small assemblies. The three‑point contact geometry provides concentric pressure around the bore, improving repeatability in serial checks. For traceability and integration into digital measurement systems, a data output RB 4.1 is provided, enabling straightforward transfer of readings into SPC or inspection software. Supplied as a ready‑to‑use precision tool from Metav IndustryLine, it supports both standalone measurements and automated data collection within a connected quality process. For a tailored specification check and prompt supply, contact Metav Werkzeuge — the Metav IndustryLine team will recommend the best configuration and confirm compatibility with existing inspection systems Technical Data Article number: M312.234.M GTIN: 4054469156408 ECLASS: 21170335 ETIM: EC003590 Facts Measurement range: 16–20 mm Accuracy / resolution: 0.005 mm Length: 80 mm Weight: 1 kg Protection class: IP 65 Special features Digital display with ON/OFF/SET and ABS/INC/UNIT Measuring drum with scale Includes setting ring and extension (150×Ø11.7) Suitable for blind bores Scale and vernier matt‑chrome plated Complies with DIN 863 Data output: RB 4.1 FAQ How accurate is the three‑point internal micrometer for small bore inspection? The micrometer achieves an accuracy of ±0.005 mm, making it suitable for high‑precision checks and repeatable quality control of internal diameters. Can the instrument measure blind bores reliably? Yes, the three‑point contact design is specifically intended for blind bores, providing concentric contact and improved repeatability in such applications. Is the micrometer workshop‑ready against dust and coolant? The instrument is rated IP65, offering protection against dust ingress and low‑pressure water jets typically encountered in machining environments. What accessories are supplied with the micrometer? Delivery includes a setting ring and an extension (150×Ø11.7) to adapt the instrument for deeper or recessed bores. Can measurement data be exported for SPC or inspection software? A data output RB 4.1 is available for digital transfer of readings into external data capture or SPC systems. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
16-20mm Digital Three-Point Internal Micrometer Carbide Measuring Faces, RB6, No Setting Ring - Metav IndustryLine
Take advantage of precise three-point centring, a clear digital display and carbide measuring faces for durable, repeatable bore checks; order via Metav Werkzeuge or consult our specialists for application advice. Digital three-point internal micrometer M312.214 – 16–20 mm, carbide faces (RB6) by Metav IndustryLine Digital three-point internal micrometer M312.214 for fast, repeatable measurement of small bores and blind holes in workshop and production environments. Digital readout with mm/inch and hold function Three-point internal measuring for bores 16–20 mm Carbide measuring faces for extended wear resistance Suitable for blind-hole measurements Reliable precision for bore measurement The Digital three-point internal micrometer M312.214 combines a compact measuring head with a three-point contact system to centre consistently in cylindrical bores, reducing eccentricity and operator error. The instrument delivers a declared accuracy of ±0.005 mm, which positions it for fine workshop verification and quality control tasks where repeatable internal dimensions are critical. The three-point geometry stabilises the contact position and minimises tilting, so measurements of bores and blind holes remain reproducible across multiple operators and cycles. Streamlined digital handling and traceability A clear digital readout with ON/OFF/SET, HOLD and mm/inch functions accelerates readings and reduces transcription mistakes during measurement routines. The unit supports RB6 data output, enabling direct data capture for logging or SPC workflows and simplifying traceability in production processes. Fast numeric results and a hold function shorten cycle time for repetitive checks and make integration into digital quality systems straightforward, improving process throughput without sacrificing precision. Built for workshop durability and repeatable results The measuring contacts are equipped with carbide (HM) faces, offering superior wear resistance for longer service life under frequent use on metallic materials. The instrument is supplied without setting ring and without extension, keeping the tool compact for confined bores while remaining suited to blind-hole measurement tasks. With a lightweight construction and robust contact geometry, the device combines handling ease with long-term dimensional stability, making it a practical choice for mechanical workshops and inspection benches. For tailored advice on integrating the Metav IndustryLine digital three-point internal micrometer M312.214 into production or inspection routines, contact Metav Werkzeuge by e‑mail at info@metav-werkzeuge.com or by telephone on +49 2822 7131930 to discuss suitability and ordering options Technical data Article number: M312.214 GTIN: 4054469169118 Label: Digital three-point internal micrometer, 16 - 20 mm, RB6 with carbide measuring faces, without setting ring, without extension Manufacturer: Metav IndustryLine Facts Measuring range: 16–20 mm Resolution / display step: 0.001 mm (digital display typical) Accuracy: ±0.005 mm Weight: 1 kg Length: 45 mm Data output: RB6 Special features Digital display with ON/OFF/SET, HOLD and mm/inch functions Three-point internal measuring principle Carbide (HM) measuring faces Suitable for blind-hole measurements Supplied without setting ring and without extension FAQ What is the measuring range of this internal micrometer? The M312.214 covers a measuring range of 16–20 mm, suitable for small-bore inspection tasks. How precise is the device for quality control use? The instrument offers an accuracy of ±0.005 mm, making the Metav IndustryLine micrometer appropriate for fine workshop verification and repeatable inspection. Can it measure blind holes? Yes, the design is suitable for blind-hole measurements, and the three-point contacts stabilise readings in such conditions. Is the display available in both metric and imperial units? The digital readout on the M312.214 features mm/inch conversion and a HOLD function for flexible measurement recording. Are the measuring faces wear-resistant for frequent use? The micrometer is equipped with carbide (HM) measuring faces to extend service life under regular workshop use. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
16-20mm Three-Point Interior Micrometer Colour Touchscreen, ISO 17025 Calibrated - Microtech Metrology
Take advantage of the combination of 0.004 mm accuracy, 0.0001 mm resolution and wireless data transfer to speed up inspection routines and reduce transcription errors; order the instrument directly via Metav Werkzeuge or consult our specialists if further advice is required. Three‑point internal micrometer – digital, calibrated, 16–20 mm The Three‑point internal micrometer is a compact, digitally read instrument for precision internal diameter measurement in fine mechanical, toolmaking and inspection environments. ISO 17025 calibration included 0.004 mm measurement accuracy Wireless + USB data output Colour 1.5" touchscreen display Precision adapted to compact components The instrument delivers high repeatability for internal measurements of small bores thanks to its three‑point contact configuration and compact geometry. Classified as Micro in terms of measuring range (16–20 mm), this class is optimised for fine mechanical work where short anvils and minimal torsion preserve stability. The stated accuracy of 0.004 mm and a display resolution of 0.0001 mm provide an objective basis for quality control decisions and reduce the need for multiple cross‑checks, improving throughput in routine inspection tasks. Fast digital workflows and traceable data Built for modern metrology processes, the device supports Wireless + USB transfer so measurement logs can be exported directly to inspection software or spreadsheets. The colour 1.5" touchscreen allows clear read‑out and simple menu navigation, while the integrated setting ring facilitates fast zeroing and repeatable set‑ups. These digital capabilities cut manual recording time and lower the risk of transcription errors, which translates into faster reporting cycles and more reliable process control across production lines. Practical design for workshop use The micrometer combines a compact form with a 230 mm measuring depth, allowing access to recessed or deep internal features that would otherwise require alternative gauges. Its three‑point measuring principle centres on contact consistency, which simplifies alignment in small bores and reduces operator influence on results. The instrument’s ergonomics and robust digital readout make it suited to daily use in workshops, metrology labs and toolrooms where concise, dependable measurement is required. Certified calibration and quality assurance Delivered fully calibrated according to ISO 17025, the micrometer arrives with a calibration certificate that documents traceability and measurement uncertainty, supporting quality management systems and audits. The inclusion of an accredited calibration report ensures measurements can be confidently referenced in inspection records and process documentation without additional setup. This certified status reinforces the device’s role as a dependable reference instrument in standardised QA workflows. Contact Metav Werkzeuge for tailored advice and reliable supply from Emmerich — our consultants will advise on integration, accessories and delivery for this Microtech Metrology three‑point internal micrometer (SKU 133702010) Technical Data Article number: 133702010 GTIN: 4061905074226 Manufacturer: Microtech Metrology Digital display: Colour 1.5" touchscreen Data output: Wireless + USB Facts Measuring range: 16–20 mm Measuring depth: 230 mm Resolution: 0.0001 mm Accuracy: 0.004 mm Calibrated to: ISO 17025 Special features Three‑point contact measuring principle Incl. setting ring Delivered with ISO 17025 calibration certificate Compact Micro class instrument for fine mechanical work FAQ What measuring range does the micrometer cover? The three‑point internal micrometer covers a measuring range of 16–20 mm, making it suitable for small internal diameters and precision components. Is the instrument delivered calibrated and traceable? Yes, the micrometer is supplied fully calibrated to ISO 17025 and includes a calibration certificate for traceability and audit documentation. How are measurement results exported? Measurement data can be exported via the Wireless and USB interfaces; the micrometer’s digital output supports direct transfer to inspection software and data logging systems. What accuracy and resolution can be expected? The instrument offers an accuracy of 0.004 mm with a display resolution of 0.0001 mm, providing reliable results for routine quality control. Which applications is this micrometer intended for? It is designed for fine mechanical, toolmaking and precision inspection tasks where compact internal measurements and traceable data are required; the three‑point contact ensures repeatable centring in small bores. Manufacturer / Responsible: Microtech, Nizhneyurkovska str., 45a, 04080 Kyiv, Ukraine, tool@microtech.tools
Measure deep bores accurately with three-point inside micrometers
Three-point inside micrometers, also known as 3-point inside micrometers or three-point internal micrometers, are precision instruments designed for accurate internal diameter measurement in bores, through holes and other confined areas. They are available in analogue and digital versions and in several form factors, from pistol-grip models to compact rod-style designs for restricted spaces.
How these micrometers work and where they pay off
The instrument uses three symmetrically arranged measuring tips that expand to contact the bore surface, delivering a stable centre reference and reducing sensitivity to positional error. This makes three-point inside micrometers indispensable for inspection of multi-step bores, precision components and routine quality control in production and workshop environments. Digital variants offer incremental and absolute measuring modes, presets and direct data transfer, while analogue models retain robust simplicity where a no-frills solution is preferred.
Clear benefits that improve throughput and quality
- Reduced rework and faster setup thanks to the three-point contact geometry, which centres automatically and minimises alignment errors.
- High measurement precision with digital models offering ±2 µm accuracy and a resolution of 0.001 mm, supporting tight tolerance control.
- Flexible data handling: Bluetooth transmission to a computer, smartphone or tablet over almost 50 metres, plus USB, RS-232 and Wi‑Fi interfaces for seamless integration into inspection workflows.
- Adaptable measuring range through exchangeable jaws and extensions available in 100 mm and 150 mm lengths, enabling measurements in deep bores.
- Ergonomic options such as pistol-grip variants for comfortable repeat measuring and compact rod designs for confined spaces.
Premium tools from Microtech and reliable supply through Metav
Microtech’s microcomputer-equipped three-point inside micrometers represent the high end of the segment, offering fast Bluetooth data transfer and comprehensive software for analysis and reporting. As a precision partner, Metav complements these manufacturers with a broad, curated range and the logistic reliability buyers need. Metav’s decade-spanning expertise, extensive product selection and centralised stock in Emmerich act as a quality filter for European workshops and production lines, making it straightforward to source the right three-point inside micrometers and accessories.
FAQ
What accuracy can I expect from digital three-point inside micrometers?
Digital three-point inside micrometers typically deliver an accuracy of ±2 µm and a resolution of 0.001 mm, which is suitable for fine tolerance work in precision engineering.
Can these micrometers measure deep or stepped bores?
Yes. Three-point inside micrometers are specifically designed for bores and through holes; extensions and exchangeable jaws allow measurements in deep or stepped bores, with extension lengths such as 100 mm and 150 mm available.
Which data interfaces are supported by the digital models?
Digital three-point inside micrometers commonly support Bluetooth, USB, RS‑232 and Wi‑Fi, enabling both direct measurement readout and integration into data acquisition systems.
Are there space-saving versions for tight access?
Compact rod-style three-point inside micrometers are made for confined spaces, while pistol-grip versions provide ergonomic advantages for repetitive measurements.
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