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.
30-40mm Three-Point Internal Micrometer Self-Centering, Supplied in Case - Metav IndustryLine
Take advantage of the combination of compact, workshop‑grade precision and robust design for repeatable blind‑hole measurement; the self‑centring three‑point contact and hardened measuring faces deliver reliable results across production and maintenance tasks. Order the instrument directly via Metav Werkzeuge or consult our advisors for application guidance. Three‑point internal micrometer MS908.657 (Metav IndustryLine) — Self‑centring, 30–40 mm The Three‑point internal micrometer MS908.657 is a mechanically driven measuring instrument intended for precise internal diameter checks, especially blind‑hole applications in fine mechanical and light industrial environments. Self‑centring three‑point contact system Measurement range 30–40 mm Hardened measuring faces for durability Precision designed for blind‑hole measurement The three‑point geometry provides self‑centring contact inside blind holes, ensuring that the contact points align automatically with the bore axis and thereby reduce eccentricity errors. With an accuracy of ±0.004 mm and a mechanical reading of 0.005 mm, this analogue measuring instrument translates fine thread motion into dependable metrology results without electronic dependence. The three‑point contact method also helps to average minor surface irregularities, which can reduce rework and speed up routine inspection tasks, making it suitable for both small series production and maintenance checks. Compact format for fine mechanical work Classified in the Mikro range (measurement span up to 100 mm), the instrument’s 30–40 mm span and overall length of 97 mm offer a favourable balance between reach and stiffness. This makes the device well suited to precision tasks where space is limited, such as watch and instrument repair, small housings and insert fittings. The hardened measuring faces increase wear resistance and preserve measurement consistency over long service intervals, so that calibration intervals remain predictable and downtime is minimised. Workshop‑ready robustness and simple handling The analogue design emphasises mechanical reliability: a clear adjustment ring (setting ring 40) allows quick pre‑setting and repeatable contact positioning, while the compact construction withstands everyday workshop handling. Delivered in a protective case for transport, the micrometer is prepared for secure storage and movement between benches or sites. The instrument’s straightforward operation and sturdy build lower the barrier to consistent metrology in production, inspection and maintenance workflows while keeping measurement practice transparent and traceable. Contact Metav Werkzeuge today for tailored application advice on the Metav IndustryLine Three‑point internal micrometer MS908.657 and ensure the right fit for blind‑hole inspection in your workshop Technical data Article number: MS908.657 Manufacturer: Metav IndustryLine Product type: Three‑point internal micrometer Suitable for: Blind‑hole measurement Core data Measurement range: 30–40 mm Length: 97 mm Accuracy: ±0.004 mm Reading (resolution): 0.005 mm Adjustment ring: 40 Mechanical type: Analogue Special features Self‑centring three‑point contact Hardened measuring faces Delivered in protective case for transport Suited to fine mechanical and light industrial use FAQ What makes the three‑point contact better for blind holes? The three‑point geometry centres itself in the bore and averages contact positions; the MS908.657 uses this principle to reduce eccentricity and provide stable internal diameter readings for blind‑hole applications. What accuracy and resolution can be expected from this instrument? The instrument offers an accuracy of ±0.004 mm with a mechanical reading of 0.005 mm, giving precise analogue measurement suitable for production checks and workshop inspection. Is the device suitable for watchmaking and small parts? Yes. With its compact dimensions and classification in the Mikro range, the micrometer is well adapted to fine mechanical work, small housings and components where a short, stiff measuring span is required. Are the measuring faces wear‑resistant? The micrometer is supplied with hardened measuring faces, which increases durability and helps maintain measurement consistency over extended use. Does the delivery include a protective case? The instrument is supplied in a protective case for transport and secure storage, making it straightforward to move between benches or sites. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
30-40mm Three-Point Internal Micrometer With Setting Ring And Extension, Case - Metav IndustryLine
Take advantage of the three‑point contact and 0.005 mm accuracy for dependable blind‑hole measurements; the included setting ring and extension make the instrument ready for immediate workshop use. Order or request advice directly via Metav Werkzeuge for supply and application support. Three‑Point Inside Micrometer M312.137.P — 30–40 mm range, 0.005 mm accuracy (Metav IndustryLine) Three‑point inside micrometer M312.137.P is a precision instrument for measuring internal diameters, especially designed for blind‑hole applications in fine mechanical and workshop environments Three‑point contact for blind‑hole measurement Measuring range 30–40 mm Accuracy 0.005 mm industrial grade Delivered in protective transport case Precision where blind holes matter The three‑point design provides a stable, repeatable contact geometry that centres itself inside blind holes, delivering reliable readings where standard anvil instruments struggle. With a measuring range of 30–40 mm and an accuracy of 0.005 mm, the instrument suits micro‑range tasks that demand fine tolerance control. The matt‑chrome scale and vernier reduce glare for easier reading and resist workshop wear, improving throughput by cutting rework and measurement uncertainty. Built for workshop reliability and ease of use Robust construction and an analog vernier format make the tool intuitive for technicians accustomed to mechanical gauges, while the included setting ring (Ø40) and extension (150 × Ø16.7) enable fast adaptation to different blind‑hole depths. Delivery in a protective transport case keeps the device safe during storage and transit. The weighing of components and compact design ensure ergonomic handling during repetitive checks, supporting consistent measurement practice on the shop floor. Suitable applications and practical benefits Engineered for internal diameters and blind‑hole bores, this measuring device is ideal for precision maintenance, jig and fixture checks, and assembly control in metalworking and toolmaking. The three contact points produce a centred measurement that reduces eccentricity errors; this is particularly valuable when assessing fit or clearance in tight assemblies. Accessories included with the instrument allow immediate deployment in production or inspection routines, shortening setup time and increasing operational efficiency. Contact Metav Werkzeuge for tailored advice or to arrange supply of the Metav IndustryLine three‑point inside micrometer (M312.137.P) and receive guidance on application and accessories. Technical data Article number: M312.137.P GTIN: 4054469158662 Tariff number: 90173000 Category: Messschrauben Key figures Measuring range: 30–40 mm Maximum range: 40 mm Minimum range: 30 mm Accuracy: 0.005 mm Reading increment: 0.005 mm Length: 90 mm Weight: 2.5 kg Special features Three‑point contact for blind‑hole measurement Analog vernier scale Scale and vernier matt‑chrome plated Includes setting ring (Ø40) Includes extension 150 × Ø16.7 Delivered in protective transport case Suitable for measuring blind holes Category: Messschrauben (inside micrometers) FAQ How does the three‑point contact improve blind‑hole measurement? The three‑point contact in the three‑point inside micrometer (M312.137.P) centres automatically in the bore, reducing eccentricity and providing more reproducible internal diameters than single‑point probes. Which measuring range does this instrument cover? This inside micrometer covers the 30–40 mm range and is supplied ready for use with the setting ring and extension included in the delivery. Is the instrument ready for workshop use straight away? Yes, the Metav IndustryLine three‑point inside micrometer M312.137.P is supplied with a setting ring and extension and arrives in a protective transport case for immediate deployment. What reading accuracy can be expected in typical use? The instrument offers a declared accuracy of 0.005 mm, suited to micro‑range precision tasks and repeatable dimensional checks in production environments. Can the device be used for depth or step measurements? The tool is optimised for internal diameter measurements and blind holes; specialised applications such as depth or step measurement are outside its primary design but may be approached using appropriate extensions and fixtures. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
30-50mm Digital Three-Point Internal Measuring, Two Heads, HM Measuring Faces, IP65, With Setting Ring And Extension - Metav IndustryLine
Take advantage of high-precision measurement, robust protection to IP65 and carbide contact faces for reliable internal inspections; the instrument’s ±0.005 mm accuracy and included setting ring with extension support consistent results in blind-hole applications. Order the M312.287.PN directly via Metav Werkzeuge or contact our consultants for specification matching. M312.287.PN — Digital three-point internal micrometer, 30–50 mm, IP65 The M312.287.PN is a digital three-point internal micrometer designed for precise internal diameter measurement in tight and blind-hole environments, combining a sealed construction with carbide contact faces for workshop and production use. Digital three-point internal measurement 30–50 mm Two measurement heads with digital display Carbide measuring faces, protected to IP65 Delivered with setting ring and extension Precise, repeatable readings for critical bore inspection The instrument delivers an accuracy of ±0.005 mm, making it suitable where narrow tolerances are required. The digital display includes ON/PRESET, mm/inch and HOLD functions to support repeatable documentation of readings, while the two measuring heads provide stable contact with the bore during rotation. Compared with standard digital callipers, this device is tailored to interior diameters and blind-hole tasks, offering a measurement concept that reduces operator-induced variation and improves throughput in routine inspections. Rugged design for the shop floor and protected measurement heads A sealed housing with IP65 protection guards electronics against coolant and dust, allowing the device to be used near machining operations without immediate risk to the display. The carbide measuring faces ensure long-term wear resistance when probing metallic bores, and the instrument’s overall construction balances robustness with handling convenience. Supplied in a transport box, the micrometer is ready for stable storage and safe movement between measuring stations. Simple setup, calibration traceability and practical operation The tool includes a setting ring and an extension (150 mm) for flexible adaptation to different bore depths, and the measuring depth of 105 mm extends capability into deeper cavities. The DIN 863 conformity provides a familiar reference for workshop technicians; calibration and adjustment procedures align with industry practice so that measurement chains remain auditable. The digital readout’s mm/inch toggle and HOLD function simplify data capture and reduce transcription errors during quality control. Application-focused benefits and typical use cases Engineered for blind-hole and internal bore inspection in precision assemblies, the device performs especially well in watchmaking, instrument parts, mould inserts and small housing bores where a compact measuring range is required. Classified in the micro category (max range up to 100 mm), this instrument offers the stiffness and fine resolution expected for small-bore metrology, while features such as the sealed electronics and carbide faces extend its service life in mixed production environments. Contact Metav Werkzeuge for an application review and secure the M312.287.PN for consistent, shop-floor-ready internal measurements Technical Data Article number: M312.287.PN GTIN: 4054469179285 Manufacturer: Metav IndustryLine Protection rating: IP 65 Standard: DIN 863 Display functions: ON/PRESET, mm/inch, HOLD Facts Measuring range: 30–50 mm Accuracy: ±0.005 mm Measuring depth: 105 mm Weight: 2.2 kg Extension: 150 mm Tariff number: 90173000 eCl@ss: 21170335 ETIM: EC003590 Special features Two measurement heads with digital readout Carbide (HM) measuring faces Suitable for blind-hole measurement Supplied with setting ring and extension Kitted in transport box for safe handling FAQ How precise is the measurement with this instrument? The M312.287.PN achieves an accuracy of ±0.005 mm, delivering high-resolution readings suitable for precision internal bore inspection. Can the device be used in wet or dirty workshop conditions? Yes, the instrument is rated IP65, which protects the electronics from dust and low-pressure water jets commonly encountered near machining centres. Is the M312.287.PN suitable for blind-hole measurements? The instrument is explicitly designed for blind-hole use and is supplied with a setting ring and extension to facilitate measurement in recessed bores. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
300-325 mm Digital Three-Point Internal Gauge For Blind Holes, Carbide Measuring Faces, Data Output RB 4 - Metav IndustryLine
Take advantage of precise blind‑hole measurement with a 300–325 mm range and robust carbide measuring faces that deliver repeatable results; the instrument's 0.012 mm accuracy and digital readout speed up inspection cycles. Order the digital three‑point internal micrometer directly via Metav Werkzeuge or consult our specialists for application advice. Digital three‑point internal micrometer M312.266.S — 300–325 mm range, carbide faces (Metav IndustryLine) The Digital three‑point internal micrometer M312.266.S is a purpose‑built instrument for accurately measuring blind holes in production and workshop inspection, combining a long reach with a stable three‑point contact system. 300–325 mm measuring range Carbide measuring faces for wear resistance Digital display with mm/inch and hold functions Designed for blind‑hole measurement Precision where blind‑hole accuracy matters A three‑point contact system converts radial geometry into a single, repeatable diameter value, making it ideal for Sackloch (blind‑hole) inspection where single‑point probes can slip. The device achieves an accuracy of 0.012 mm, which supports reliable quality control across medium‑sized components. The 300–325 mm range places this instrument in the mid‑range class, suitable for larger fixtures and mould halves while retaining manoeuvrability. With carbide measuring faces, the contact surfaces resist wear under repeated use, extending service intervals and reducing measurement drift. Faster readings and fewer processing errors The digital readout is equipped with ON/0, mm/inch, ABS, PRESET and HOLD keys to streamline reading and data capture. Quick unit switching and preset functions reduce calculation steps and speed up batch inspections, while the hold feature freezes unstable readings for clear documentation. The instrument's resolution of 0.001 mm (display) ensures discernible changes are visible to the operator, supporting faster decision‑making on the shop floor. These features lower cycle time and minimise manual transcription errors when results are transferred to inspection reports. Built for workshop integration and traceable results Connectivity is provided via RB 4 data output, enabling direct transfer of measurement values into SPC or inspection software for traceability. The micrometer is supplied without an adjustment ring and is delivered in a transport case for secure handling and storage, aiding organisation in busy production environments. Weighing approximately 5 kg, the instrument is stable during measurement yet portable enough for bench or in‑machine use. This combination of digital interfacing and robust construction makes it suited to repeatable inline checks and workshop quality assurance. For precision blind‑hole measurement choose the Metav IndustryLine digital three‑point internal micrometer and request tailored supply or technical consultation from Metav Werkzeuge GmbH by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: M312.266.S GTIN: 4054469159058 Tariff code: 90173000 Manufacturer: Metav IndustryLine Facts Measuring range: 300–325 mm Measuring depth: 140 mm Readout resolution: 0.001 mm Stated accuracy: 0.012 mm Weight: 5 kg Digital: yes Data output: RB 4 Special features Three‑point internal measurement Carbide measuring faces Digital display with ON/0, mm/inch, ABS, PRESET, HOLD Delivery without setting ring Supplied in transport case Designed for blind‑hole measurement Category: Micrometers (internal) FAQ How does the three‑point measurement improve blind‑hole readings? Three contact points average circumferential variation into a single diameter value; the design of the Digital three‑point internal micrometer M312.266.S reduces positional error in blind‑hole applications and yields more repeatable results than single‑point probes. Is the device compatible with data acquisition systems? Yes. The instrument features RB 4 data output, allowing measured values from the Metav IndustryLine digital three‑point internal micrometer to be transferred directly to inspection software or SPC systems. What is included with delivery and what is missing? Delivery includes the instrument in a transport case for secure handling. The micrometer is supplied without a setting ring; if a reference ring is required it must be ordered separately. For which workshop tasks is this instrument best suited? The micrometer is intended for medium‑range internal inspections—vices, housings and blind holes—where 300–325 mm reach and high repeatability are required; it balances reach and stiffness for typical machining and assembly inspection tasks. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
300-325mm Three-Point Inside Micrometer Ratchet, Matt Chrome Scale And Vernier, 0.012mm Accuracy, Plastic Case - Metav IndustryLine
Take advantage of precise internal measurement and robust workshop handling: the combination of a 300–325 mm measuring range, an accuracy of ±0.012 mm and a ratchet stop ensures reproducible results for medium‑sized bores and fixtures. Order the instrument directly via Metav Werkzeuge or consult our specialists for application advice. Three‑point inside micrometer M312.156 — three‑point inside micrometer, 300–325 mm range, ratchet stop (Metav IndustryLine) The three‑point inside micrometer M312.156 is a precision instrument for internal diameter measurement in jig, mould and general industrial metrology, providing stable contact in medium‑sized bores. Medium range 300–325 mm for larger components Analogue vernier resolution 0.005 mm Ratchet stop for constant measuring force Matte chrome‑plated scale and vernier Precise, repeatable internal measurement for production control The three‑point contact spindle design gives a stable, concentric seating inside bores, reducing eccentricity and improving repeatability. With an indicated accuracy of ±0.012 mm and a vernier resolution of 0.005 mm, this analogue instrument is intended for routine quality control where reliable numeric comparability is required. The ratchet stop maintains a consistent measuring force so measurements are less dependent on operator technique, which supports tighter process control and reduces scrap rates. Robust engineering that suits busy workshops Built for repetitive use, the instrument features a matte chrome‑plated scale and vernier for clear reading and good wear resistance. The measuring depth of 140 mm and sturdy body construction make it suitable for measuring recesses and larger internal features without compromising stiffness. Hardened measuring faces are included to withstand contact wear, and the delivery in a protective case supports safe transport between job sites and polishing benches. Optimised for medium‑range internal diameters With a measuring span of 300–325 mm, this device falls into the medium class of internal measuring tools: long enough to reach larger fixtures and housings, yet compact enough to be manageable by a single operator in most setups. That positioning makes it particularly useful in toolrooms, mould shops and medium‑series production where balance between reach and rigidity is essential for reproducible results. Practical workflow features to speed up inspections The analogue vernier operation avoids dependence on batteries and simplifies long‑term serviceability; the ratchet provides tactile control for consistent readings and the instrument’s weight and build quality aid in stable handling. Note that the instrument is supplied without a setting ring, so calibration or setting with a suitable reference standard is required before first use. The absence of electronic data output reflects a focus on rugged, low‑maintenance measurement routines. Choose the Metav IndustryLine three‑point inside micrometer M312.156 for dependable medium‑range internal measurement — contact Metav Werkzeuge in Emmerich for tailored advice or to place an order (info@metav-werkzeuge.com | +49 2822 7131930) Technical data SKU: M312.156 GTIN: 4054469119632 Category: Micrometers (Messschrauben) eClass: 21170335 ETIM: EC003590 Facts Measuring range: 300–325 mm Measuring depth: 140 mm Resolution (vernier): 0.005 mm Accuracy: ±0.012 mm Weight: 12 kg Tariff code: 90173000 Special features Matte chrome‑plated scale and vernier Analogue instrument with vernier reading Ratchet stop for constant measuring force Hardened measuring faces Delivered in protective case Supplied without setting ring Category: three‑point inside micrometer FAQ What measuring range does this micrometer cover? The three‑point inside micrometer M312.156 covers a measuring range of 300–325 mm, suitable for medium‑sized internal diameters. How fine is the reading on the instrument? The instrument provides a vernier resolution of 0.005 mm and an indicated accuracy of ±0.012 mm for consistent inspection results. Is a setting ring included with delivery? No, delivery of the Metav IndustryLine M312.156 is without a setting ring; a reference standard is required to set the instrument before first use. Does the micrometer include hardened measuring faces? Yes, the M312.156 is supplied with hardened measuring faces to ensure long‑term wear resistance during repeated contact measurements. Can the instrument be used without batteries or electronics? Yes, the analogue vernier operation of the M312.156 requires no batteries, prioritising ruggedness and low maintenance. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
300-325mm Three-Point Internal Micrometer Digital, 0.001mm Resolution, Hardened Measuring Faces, Supplied in Case - Metav IndustryLine
Take advantage of precise digital measurement, robust hardened measuring faces and a long 300–325 mm range to secure consistent internal diameters and faster setup in production. Order the three-point internal micrometer directly via Metav Werkzeuge or ask our consultants if needed. Three-point internal micrometer M312.266 — Digital internal micrometer, 300–325 mm, Metav IndustryLine A three-point internal micrometer M312.266 for accurate large-bore measurements in toolmaking, fixture construction and component inspection Digital display with mm/inch, ABS and HOLD Measuring range 300–325 mm Hardened measuring faces for wear resistance RB 4 data output for digital traceability Confident internal measurements with measurable precision The three-point measuring principle ensures stable contact across the bore and, combined with a measuring range 300–325 mm, provides reproducible readings for medium-to-large internal diameters. The instrument offers accuracy 0.012 mm and a fine resolution 0.001 mm, values that translate into fewer reworks and reliable quality control steps. The substantial measuring depth 140 mm permits measurement of recessed bores and stepped components without auxiliary fixtures, helping to standardise inspection routines on shop floors and in quality labs. Built for repeatability and straightforward handling Robust construction and hardened measuring faces reduce wear under continuous use, extending the tool’s service life in busy production environments. The digital display includes ON/0-, mm/inch-, ABS-, PRESET- and HOLD-touches to speed up setup and avoid manual transcription errors. Supplied without a setting ring, the instrument integrates into existing calibration procedures and is suited to fixed inspection benches or portable verification tasks. The device’s mass (approx. 5 kg) adds stability during measurement, improving repeatability for heavier or awkward components. Streamlined data transfer and procurement-friendly details Equipped with RB 4 data output, the micrometer transfers measurements to SPC or inspection software for traceable records and Process Control integration. The robust specification supports documentation requirements across manufacturing and inspection chains, and the included classification details simplify ordering and customs handling. The tool is therefore well suited to workshops and production lines that require both hands‑on reliability and digital traceability to meet modern quality standards. Choose the Metav IndustryLine three-point internal micrometer for dependable large-bore measurement—contact Metav Werkzeuge for technical advice or to arrange supply. Technical data SKU: M312.266 GTIN: 4054469159034 Eclass: 21170335 ETIM: EC003590 Tariff number: 90173000 Facts Measuring range: 300–325 mm Accuracy: 0.012 mm Resolution (reading): 0.001 mm Measuring depth: 140 mm Weight: 5 kg Special features Digital display with ON/0-, mm/inch-, ABS, PRESET and HOLD RB 4 data output for digital measurement transfer Hardened measuring faces for wear resistance Supplied without setting ring FAQ What measurement range does this micrometer cover? The three-point internal micrometer covers a 300–325 mm measuring range suitable for medium-to-large bores in fixtures and housings. What resolution and accuracy can be expected? Resolution is 0.001 mm and the stated accuracy is 0.012 mm, providing the precision required for routine production checks and component inspection with the Metav IndustryLine micrometer (M312.266). Is the instrument ready for digital data capture? Yes. The device features an RB 4 data output, enabling direct transfer of measured values into SPC or inspection systems. Are measuring faces treated to resist wear? The micrometer is supplied with hardened measuring faces, which improves durability and maintains measurement consistency under regular use. Is a setting ring included for calibration? Delivery is without a setting ring; calibration or presetting should be performed with existing workplace standards or with a separately ordered setting ring. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
300mm Extension Rod Ø15.5mm For Rod Internal Micrometer Set, - Metav IndustryLine
Benefit from extended reach, secure fit and workshop-grade handling thanks to the 300 mm length and Ø 15.5 mm shank; ideal for extending the range of existing rod internal micrometre sets. Order the extension directly via Metav Werkzeuge or ask our consultants if needed. Extension rod 300 mm, Ø 15.5 mm for 310.064 — Metav IndustryLine accessory The Extension rod 300 mm, Ø 15.5 mm for 310.064 is a precision accessory that extends measurement reach for rod internal micrometre sets used in workshop inspection and fixture assembly. 300 mm extended reach for deep inspections Ø 15.5 mm shank for secure fitting Compatible with 310.064 internal micrometre set Solid 0.4 kg construction for stable measurements Reach deeper assemblies with reliable repeatability The extended 300 mm length provides decisive advantage when measuring recessed bores or deep internal features that standard probes cannot access. By increasing the effective reach without sacrificing stiffness, the extension rod preserves repeatability across multiple measurements. Compatibility with the referenced set ensures that the probe interface remains concentric and stable, reducing the need for repeated setups and saving inspection time. Secure connection and dimensional stability for consistent results The Ø 15.5 mm shank dimension guarantees a snug fit in the matching holder, allowing the extension to behave as a coherent part of the measuring chain rather than an add‑on. This mechanical fit promotes consistent axial alignment and minimises deflection during measurement. The moderate mass of 0.4 kg contributes to handling stability while remaining manageable in a typical shop environment, facilitating fast instrument changes and less operator fatigue. Practical use in workshop and quality inspection workflows Designed as an accessory for internal rod micrometres, the extension rod integrates seamlessly into existing measuring routines and fixtures. Its straightforward geometry makes it suitable for serial checks and incoming inspection where access depth is the limiting factor. The clear, compact form supports easy storage and rapid exchange between gauges, helping to maintain throughput on the shop floor without compromising measurement integrity. For extended reach in precision inspection, request the Metav IndustryLine 300 mm extension from Metav Werkzeuge; contact info@metav-werkzeuge.com or call +49 2822 7131930 for supply and technical advice Technical data SKU: M310.061.6 GTIN: 4054469118918 Manufacturer: Metav IndustryLine eClass: 21019104 ETIM: EC002219 Numbers / core technical data Length: 300 mm Diameter: 15.5 mm Weight: 0.4 kg Tariff code: 90173000 Compatibility / features Compatibility: for 310.064 internal micrometre set Category: Accessories (Measuring instruments accessory) Extension specification: 300 mm × Ø 15.5 mm Story trigger: zubehör FAQ What is the primary purpose of this extension rod? The extension rod is intended to increase the measurement reach of rod internal micrometre sets, enabling checks in deep bores and recessed features that the basic set cannot access. Will the extension fit other micrometre systems? Compatibility is specified for the matching holder of the 310.064 set; interchangeability with other brands or designs depends on matching the shank interface and seating geometry. How does the shank diameter affect measurement quality? A precise Ø 15.5 mm shank ensures secure engagement in the holder, which stabilises the measuring axis and reduces angular error, supporting repeatable internal measurements. Is the extension suitable for serial inspection tasks? Yes. The straight geometry and robust mass distribution make the extension well suited for repetitive inspection work where extended reach is required without frequent recalibration. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
300xØ29 Extension for Three-Point Internal Micrometer Compatible with Series M312.146/M312.157/M312.256/M312.267 - Metav IndustryLine
Extend measuring reach and preserve alignment with the M312.155 extension: its 300 mm length and Ø29 mm profile convert three-point internal micrometers into reliable large-range gauges, while direct compatibility with the M312.146–M312.157 and M312.256–M312.267 series cuts integration time. Order the extension via Metav Werkzeuge or ask the team for application guidance. M312.155 Extensions — 300 mm × Ø29 mm for three-point internal micrometers (Metav IndustryLine) The M312.155 is an extension engineered to increase the measuring range of three-point internal micrometers for large-bore internal measurements in workshops and metrology environments. 300 mm extension Ø29 mm Compatible with series M312.146–M312.157 Accessory for three-point internal micrometers Reach larger bores without compromising stability Adding a dedicated extension increases the effective measuring range while keeping the sensing geometry intact. The 300 mm length and Ø29 mm shank are specified to maintain axial alignment with the micrometer head, which reduces probe tilt and measurement scatter on large diameters. For production and quality-control tasks, this means fewer setups and faster throughput, because larger components can be measured without constructing temporary fixtures. The design supports reproducible contact and stable centring over the extended span. Fast fit and reliable compatibility with existing systems Compatibility with the M312.146–M312.157 and M312.256–M312.267 series ensures straightforward integration into existing three-point internal micrometer setups. The extension is intended as a direct mechanical add-on, avoiding adaptations that can introduce runout. This reduces downtime during retrofits and simplifies tooling logistics: the same micrometer head can be used across a wider range of components. The clear series matching cuts procurement complexity and helps maintain a consistent measurement chain. Practical benefits for workshop and laboratory use Using a purpose-made extension minimises handling and measurement uncertainty compared with improvised solutions. For calibration routines and repeat inspections, a dedicated extension provides defined geometry that supports traceability and consistent repeatability. The unit’s compact mass assists in handling while preserving stability, making it suitable for bench-mounted metrology and light workshop use. Where repeatable bore measurements are required, the extension helps preserve the original instrument’s performance over an extended range. For precise large-bore measurements, request the M312.155 extension from Metav Werkzeuge in Emmerich; Metav’s specialists can confirm compatibility and delivery options by phone or e‑mail. Technical data SKU: M312.155 GTIN: 4054469119618 Manufacturer: Metav IndustryLine eClass: 21019104 ETIM: EC002219 Key dimensions Extension: 300 × Ø29 mm Weight: 1 kg Tariff number: 90173000 Compatibility / Special features Compatible with series M312.146–M312.157 and M312.256–M312.267 Accessory for three-point internal micrometers Category: Accessories (Zubehör) FAQ What is the total extension length and shank diameter? The extension measures 300 × Ø29 mm as delivered with the M312.155 and is specified to extend the reach of three-point internal micrometers. Which micrometer series does this extension fit? This accessory is compatible with the M312.146–M312.157 and M312.256–M312.267 series and is intended for use with three-point internal micrometers. Is the extension supplied ready to use on the micrometer? The product is a mechanical extension for the three-point internal micrometer system; mounting is performed according to the micrometer series’ interface and does not require additional adapters when matched to the listed series. What is the weight of the extension? The M312.155 has a mass of 1 kg, which supports stable handling while limiting added inertia during measurement. Does the product data state the material or coating used? The provided product data does not specify material or coating for this extension. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
300–325 mm Three-Point Internal Gauge For Blind Holes With Carbide Measuring Faces, Ratchet, Supplied In Case - Metav IndustryLine
Take advantage of the combination of precise three‑point internal measuring, carbide measuring faces and a ratchet stop for repeatable blind‑hole checks; order directly via Metav Werkzeuge or consult the technical team for application advice. Three‑point internal micrometer M312.156.S — 300–325 mm, carbide faces (Metav IndustryLine) The Three‑point internal micrometer M312.156.S is an analogue instrument designed for precise measurement of blind holes and large bores in workshop and inspection environments. Three‑point internal measuring principle Carbide measuring faces for long wear resistance Ratchet stop for consistent contact force Large bore range 300–325 mm Reliable three‑point measurement for blind holes The three‑point measurement system translates circumferential contact into a central diameter value, making it particularly effective for blind‑hole measurement where single‑edge probes fail to centre reliably. With a stated accuracy of 0.012 mm and a vernier reading of 0.005 mm, the instrument delivers a balance of resolution and real‑world repeatability. The inclusion of a ratchet stop helps to ensure a constant measuring force across successive readings, reducing operator‑induced variance and supporting efficient quality control routines on production lines. Built for large‑bore inspection and robust handling Covering a measuring range 300–325 mm and a measuring depth 140 mm, this micrometer is configured for sizeable internal diameters such as housings, flanges and large bores in machining and assembly work. The scale and vernier are matt chrome‑plated, which reduces reflections and improves legibility under workshop lighting. Carbide measuring faces provide wear resistance when used on standard ferrous and non‑ferrous materials, extending service life and maintaining accuracy between calibrations. Note that the delivery is supplied without setting ring, so plan for the necessary calibration or reference ring in your inspection setup. Practical benefits: reproducibility, serviceability and integration As an analogue vernier instrument it requires no batteries and offers straightforward field use with minimal maintenance; the mechanical design emphasises accessibility for inspection and calibration tasks. The robust construction suits regular handling in busy shops while carbide faces reduce wear, limiting downtime for part replacement. For procurement and traceability, the tool is offered through Metav IndustryLine and benefits from Metav’s European distribution and quality filtering in Emmerich — a combination that supports dependable supply and clear documentation for industrial customers. Contact Metav Werkzeuge for a tailored application assessment or to procure the Metav IndustryLine three‑point internal micrometer M312.156.S directly from their Emmerich facility; phone +49 2822 7131930 or e‑mail info@metav-werkzeuge.com Technical data Article number: M312.156.S GTIN: 4054469158761 Category: Micrometers Type: Analogue (vernier) Core technical data Measuring range: 300–325 mm Measuring depth: 140 mm Accuracy: 0.012 mm Reading (vernier): 0.005 mm Weight: 12 kg Special features Carbide measuring faces Ratchet stop for consistent contact force Matt chrome‑plated scale and vernier Suited for blind‑hole measurement Delivery without setting ring FAQ How does the three‑point principle improve blind‑hole measurements? The three‑point internal micrometer M312.156.S uses three equidistant contacts to centre within the bore, which converts bore geometry into a reliable diameter reading suitable for blind‑hole applications. What accuracy and reading resolution can be expected? The instrument offers an accuracy of 0.012 mm with a vernier reading of 0.005 mm, providing a practical compromise between resolution and workshop robustness for the Metav IndustryLine micrometer. Are the measuring faces wear‑resistant for frequent shop use? Yes, the tool is fitted with carbide measuring faces that significantly reduce wear and help maintain measurement integrity during regular inspection cycles. Is a setting ring included with the micrometer? No, delivery of the M312.156.S is supplied without a setting ring; a separate reference or calibration ring is required for traceable zeroing. Can this micrometer measure deep bores? With a measuring depth of 140 mm and a range of 300–325 mm, the device is intended for relatively deep bores and large internal diameters encountered in heavy‑duty components. Metav IndustryLine: Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
30–40mm Digital Three-Point Internal Micrometer With Carbide Faces, RB6 Spindle, Digital Readout mm/inch - Metav IndustryLine
Take advantage of high metrological precision and robust shop-floor usability with this digital three-point internal micrometer: carbide measuring faces, 0.005 mm accuracy and RB 6 data output combine for reliable internal measurements and traceable data capture. Order the instrument directly via Metav Werkzeuge or consult our specialists for application advice. Metav IndustryLine Digital Three‑Point Internal Micrometer M312.217 — digital, 30–40 mm range, RB 6 data output Metav IndustryLine Digital Three‑Point Internal Micrometer M312.217 is a precision instrument for internal diameter measurement in small bores and blind holes, designed for workshop and quality‑assurance use. Digital readout with mm/inch and HOLD Carbide measuring faces for wear resistance Measurement range 30–40 mm, high precision Suitable for blind‑hole measurements (RB 6 output) Faster, more reliable internal measurements through precise mechanics and clear data The three‑point design gives reproducible contact with cylindrical bores, converting a complex probing task into a single, repeatable measurement. The instrument combines a measurement range 30–40 mm with a resolution of 0.001 mm on the digital display and a verified accuracy of 0.005 mm, which reduces rework and speeds up inspection cycles. The carbide measuring faces resist wear in frequent use, keeping inspection uncertainty low over long production runs. For applications where blind‑hole measurement is required, the built‑in geometry and contact arrangement deliver stable readings even when access is limited. Built for shop‑floor integration and traceable data handling A robust, easy‑to‑read digital display with ON/OFF, SET, HOLD and mm/inch selection allows quick switching between tasks and units. The micrometer is equipped with RB 6 data output, enabling direct capture of measurement results into inspection software or data loggers for statistical process control and documentation. This rational approach to measurement — combining fast readout, compact mechanics and digital interfacing — supports production lines that require both speed and documented traceability, helping quality teams meet internal and customer requirements with less manual transcription. Practical durability and application benefits for everyday metrology The instrument is supplied without a setting ring or extension and is optimised for blind‑hole checks and small bore diameters typical in precision assemblies. The solid feel and balanced mass contribute to consistent operator technique, while the carbide measuring faces focus wear resistance where it matters most. Weighing 2.3 kg and finished for industrial use, the device suits bench‑top inspection and tighter‑tolerance checking in toolrooms and small batch production. By concentrating on core functions — robust contacts, precise electronics and straightforward data output — the micrometer helps maintain throughput without sacrificing measurement confidence. Contact Metav Werkzeuge to discuss integration options, request a technical datasheet or arrange procurement of the Metav IndustryLine M312.217 for precise internal measurements Technical Data Article number: M312.217 GTIN: 4054469169149 Category: Micrometers (three‑point internal) Manufacturer: Metav IndustryLine Facts Measurement range: 30–40 mm Resolution (display): 0.001 mm Accuracy: 0.005 mm Weight: 2.3 kg Tariff number: 90173000 Special features Carbide measuring faces (HM) Digital display with ON/OFF, SET, HOLD and mm/inch RB 6 data output Suitable for blind‑hole measurements Delivered without setting ring and without extension Label: Digital three‑point internal micrometer, 30–40 mm FAQ What level of accuracy can be expected from this three‑point internal micrometer? The instrument offers an accuracy of 0.005 mm and a display resolution of 0.001 mm, making it suitable for fine internal diameter control and repeatable quality checks. Can the micrometer measure blind holes? Yes, the design is specifically suited to blind‑hole measurements and is indicated for such applications, providing stable contact and reliable readings in restricted access bores. How are measurement results exported from the device? Results can be transferred via the RB 6 data output, allowing direct capture into compatible data acquisition systems or inspection software for traceability. Is the display convertible between units? The digital display supports both mm and inch via the mm/inch button, and includes HOLD and SET functions for convenient measurement routines. What materials are the measuring faces made from? The measuring faces are carbide, chosen for high wear resistance and long service life under frequent use. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
30–40mm Three-Point Internal Digital Bore Gauge With Carbide Measuring Faces, IP65, Setting Ring, Supplied In Case - Metav IndustryLine
Benefit from high-precision, repeatable internal measurements thanks to the three-point contact system and an accuracy of ±0.005 mm, combined with IP65 protection and carbide measuring faces for long-term wear resistance; order directly via Metav Werkzeuge or speak with our consultants for tailored advice. Digital three-point internal micrometer M312.237.PN — 30–40 mm range, IP65, carbide faces (Metav IndustryLine) A Digital three-point internal measuring instrument M312.237.PN designed for reliable bore inspection and blind‑hole measurement in workshop and production environments. Digital display with mm/inch and HOLD IP65 protection for shop floor use Carbide measuring faces for wear resistance Range 30–40 mm, accuracy ±0.005 mm Precision where bore quality matters The three-point contact geometry provides stable centring in cylindrical bores, translating small radial deviations into reliable axial readings. With an indicated accuracy of ±0.005 mm and a resolution of 0.001 mm, the instrument is suitable for demanding inspection tasks where repeatability reduces rework. The design supports measurements in standard and blind bores, and conformity to DIN 863 makes it compatible with established workshop procedures. The three-point arrangement ensures consistent seating in the bore, improving repeatability over single-contact probes. Built for continuous use on the shop floor Durability is achieved through carbide measuring faces and an IP65 rating that keeps out dust and low-pressure water jets, allowing the device to be used close to machining centres without excessive protective measures. The solid construction and a mass of around 1 kg provide the stiffness needed for stable handling, while the wear-resistant contact tips extend service intervals. These attributes lower downtime and maintain measurement quality under real production conditions, so fewer measurements need repeating and throughput remains steady. Clear readings and practical data handling The digital display provides rapid readout switching between mm/inch, plus ON/PRESET and HOLD functions for timed readings. Data output via RB 6 enables direct transfer to inspection software or data loggers for traceable process control. Included accessories such as the setting ring (40 mm) and an extension (150 x Ø23.5) allow quick verification and measurement of deeper bores without additional tools. This combination of intuitive display, data connectivity and calibration aid speeds up inspection cycles and reduces operator error. Efficiency and confidence for quality teams Engineered for repeatable results, the instrument supports efficient quality routines in small-batch shops as well as larger production runs. The integrated features simplify documentation and traceability, making the tool a pragmatic choice where reproducible internal measurements are essential. Backed by Metav’s role as a precision partner, the device aligns with an approach that brings high‑quality metrology within reach of workshops and maintenance teams, supporting consistent output and fewer rejects. Speak to Metav Werkzeuge for tailored advice on the M312.237.PN — Metav’s specialists can confirm suitability for specific bore geometries and production routines; contact info@metav-werkzeuge.com or call +49 2822 7131930 to discuss requirements. Technical data SKU: M312.237.PN GTIN: 4054469179131 Product type: Digital three-point internal micrometer Brand: Metav IndustryLine Facts Measuring range: 30–40 mm Resolution: 0.001 mm Accuracy: ±0.005 mm Weight: 1 kg Protection class: IP65 Setting ring: 40 mm Extension: 150 x Ø23.5 Special features Carbide measuring faces Digital display with ON/PRESET, mm/inch, HOLD Data output: RB 6 Suitable for blind-hole bores Conforms to DIN 863 Includes setting ring and extension FAQ What measurement range does the instrument cover? The measuring range is 30–40 mm; the M312.237.PN is optimised for internal bores within that span. Is the device suitable for blind‑hole measurements? Yes, the three‑point contact system and included extension make the M312.237.PN suitable for blind‑hole (sackloch) bores. How is data exported from the instrument? The instrument provides a data output via RB 6, enabling connection to compatible data collection systems. What level of protection does the instrument offer in harsh environments? Rated IP65, the unit resists dust ingress and low‑pressure water jets, permitting use close to machining processes. Does the micrometer include calibration aids? The delivery includes a setting ring (40 mm) and an extension for quick verification and setup. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
325-350mm Digital Three-Point Internal Micrometer For Blind Holes With Carbide Faces, 0.001mm Readout, Supplied In Case - Metav IndustryLine
Take advantage of a high‑precision, wear‑resistant measuring solution that combines a three‑point contact system, carbide measuring faces and a digital readout with data output for efficient quality control. Order the instrument directly via Metav Werkzeuge or ask the consultants for additional technical details or integration options. Digital three‑point internal micrometer M312.267.S – 325–350 mm range, blind‑hole carbide faces (Metav IndustryLine) The Digital three‑point internal micrometer M312.267.S is a specialised measuring instrument designed for repeatable internal diameter measurements of blind holes and bores in production and inspection environments. Digital display with mm/inch and HOLD function Carbide measuring faces for long wear resistance Three‑point blind‑hole contact system Measuring range 325–350 mm, depth 140 mm Precise blind‑hole measurement where concentric contact matters The three‑point measuring head delivers a stable, repeatable contact geometry that centres automatically within the bore, reducing alignment errors typical of two‑point gauges. This design is particularly effective for blind‑hole applications, where axial access is limited; the measuring head contacts the bore at three equidistant points to provide a reliable diameter value with minimal influence from slight angular misalignment. The instrument’s accuracy of 0.012 mm ensures measurements meet workshop and production control tolerances, making it suitable for medium‑format internal measurement tasks where reproducibility is essential. Digital readout and data connectivity for faster inspection cycles The clear digital display with ON/0-, mm/inch-, ABS-, PRESET- and HOLD functions simplifies operator workflows and reduces interpretation errors. A display resolution of 0.001 mm provides fine increments for careful adjustment, while the data output RB 4 allows direct transfer of results to statistical process control systems or data loggers, speeding up inspection rounds and documentation. Together, these features lower cycle times in quality assurance and support traceable measurement records that integrate into existing production IT environments. Durable construction for industrial use and reduced downtime Measuring faces made from carbide (hard metal) offer superior wear resistance compared with softer materials, extending service life in high‑use settings and maintaining measurement accuracy over time. The instrument is engineered for robust workshop handling and a measuring depth of 140 mm, so larger blind holes can be reached without compromising stability. Weight and construction support comfortable handling while maintaining stiffness for repeatable readings, translating into fewer remeasurements and consistent output quality. Practical integration into metrology workflows The unit arrives configured for immediate use in routine inspection tasks and is supplied without a setting ring, allowing integration into existing calibration routines or adaptation to company‑specific master gauges. Operators benefit from the combination of a stable three‑point contact system and a digital interface that reduces subjective reading errors and simplifies documentation. This makes the instrument a pragmatic choice for machine shops, toolrooms and inspection departments that require reliable internal measurement of components during incoming inspection and in‑process control. Contact Metav Werkzeuge in Emmerich to arrange a technical consultation, request detailed data or confirm compatibility with existing SPC systems for the M312.267.S three‑point internal micrometer Technical Data Article number: M312.267.S GTIN: 4054469159065 ECLASS: 21170335 ETIM: EC003590 Category: Micrometers Facts Measuring range: 325–350 mm Measuring depth: 140 mm Display resolution: 0.001 mm Accuracy: 0.012 mm Weight: 5 kg Data output: RB 4 Special features Three‑point internal measuring head for blind holes Carbide (HM) measuring faces Digital display with ON/0-, mm/inch-, ABS-, PRESET-, HOLD functions Supplied without setting ring Suitable for routine production and inspection workflows FAQ What measuring range does this micrometer cover? The M312.267.S covers a measuring range of 325–350 mm, designed for larger internal diameters and blind‑hole applications. Is the instrument suitable for blind‑hole measurement? Yes, the three‑point contact geometry of the M312.267.S is specifically designed to measure blind holes reliably and to centre automatically within the bore. What accuracy and resolution can be expected? The instrument provides an accuracy of 0.012 mm with a display resolution of 0.001 mm, suitable for production and laboratory inspection where fine resolution is required. Does the micrometer provide data output for SPC systems? The micrometer includes data output RB 4, enabling direct transfer of measurement data to compatible process control or logging equipment. Which accessories are delivered with the micrometer? Delivery is without a setting ring; other standard accessories are not listed in the product data and should be confirmed with Metav Werkzeuge if required. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
325-350mm Three-Point Inside Micrometer Digital With ON/Zero, mm/inch, ABS, Preset, Hold, Hardened Measuring Faces, Supplied In Case - Metav IndustryLine
Take advantage of precise medium‑range measurement, a clear digital readout and robust, transport‑ready construction for reproducible bore inspection and process control. Order this instrument directly via Metav Werkzeuge or consult our specialists for application advice and delivery options. Three‑point inside micrometer M312.267 — digital internal micrometer, 325–350 mm, Metav IndustryLine The Three‑point inside micrometer M312.267 is a digital instrument designed for accurate internal measurements in machine shops and quality inspection, ideal where medium‑range bore and ring accuracy is required. Digital display with mm/inch and ABS functions Measuring range 325–350 mm for medium assemblies Carbide measuring faces for wear resistance Supplied in a transport case Consistent medium‑range precision for production control This instrument covers the 325–350 mm interval and is classified in the medium range for internal measurement, making it well suited to fixture work, housing bores and rotary components where reach and stiffness must be balanced. The specified accuracy of ±0.012 mm supports reliable control tolerances during serial inspection and set‑up tasks. The spindle and three‑point measuring geometry provide repeatable contact with the bore, reducing operator‑induced variation and enabling faster decision cycles on the shop floor. As a consequence, throughput and first‑pass yield improve when this measuring principle replaces slower or less rigid methods. Clear digital handling and secure data transfer for traceability Equipped with a digital display featuring ON/0‑, mm/inch, ABS, PRESET and HOLD functions, the instrument offers immediate readback and basic data handling without added peripherals. For process integration the unit includes RB 4 data output, which permits connection to data collection devices or quality management systems and reduces transcription errors. Operators benefit from faster measurement routines and straightforward switching between metric and imperial units, while production engineers gain an auditable measurement stream that simplifies SPC sampling and corrective actions. Durable construction and transport protection for workshop use Built for daily shop use, the micrometer has carbide measuring faces that maintain form and surface finish under repetitive contact. A measuring depth of 140 mm and a stable mechanical frame with a weight of 5 kg deliver the stiffness required for reproducible readings across the full span. Delivery in a protective case ensures safe transport between inspection benches or job sites; note that the scope of delivery explicitly excludes a setting ring. This combination of wear‑resistant contacts and protected storage reduces downtime and maintenance efforts over the instrument’s service life. Practical fit for machine shops and inspection benches Metav IndustryLine positions this instrument as a workshop‑grade solution for routine internal measurement tasks where medium reach and dependable accuracy are required. The three‑point concept is particularly effective for measuring stepped bores and internal diameters with limited access. The instrument supports straightforward workflows in small series production as well as in maintenance and overhaul applications, contributing to consistent quality outputs from the inspection stage through to final assembly. For tailored advice on integrating the Metav IndustryLine M312.267 into existing inspection processes or to arrange delivery from Emmerich, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for an expert consultation and fast fulfilment. Technical data Article number: M312.267 GTIN: 4054469159041 Brand: Metav IndustryLine Data output: RB 4 Delivery: without setting ring Supplied in case Facts Measuring range: 325–350 mm Accuracy: ±0.012 mm Measuring depth: 140 mm Weight: 5 kg Digital display: ON/0-, mm/inch, ABS, PRESET, HOLD Tariff number: 90173000 Features Three‑point internal measuring geometry Carbide measuring faces Digital instrument with data output capability Transport case included Intended for medium‑range internal measurements FAQ What measuring range does the instrument cover? The instrument covers a 325–350 mm measuring range suitable for medium‑sized bores and components. What accuracy can be expected in routine use? The micrometer achieves an accuracy of ±0.012 mm, making it suitable for shop‑floor inspection and setup tasks requiring tight repeatability. Is the device protected for transport and storage? Yes, the instrument is supplied in a protective case, which helps prevent damage during storage and transit. Does the delivery include a setting ring? No, delivery is made without a setting ring; please order the appropriate reference ring separately if needed. Which data output is available for process integration? Data transfer is available via RB 4 output to support connection to data loggers or quality systems. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
325-350mm Three-Point Internal Measuring Instrument For Blind Holes, Carbide Measuring Faces, Pocket Depth 140mm, Ratchet, Supplied In Case - Metav IndustryLine
Take advantage of the combination of robust three-point contact, carbide measuring faces and a ratchet stop for reproducible blind‑hole measurement across a medium range; order the instrument directly via Metav Werkzeuge or ask our consultants for application advice. Three-point internal gauge M312.157.S — Metav IndustryLine, 325–350 mm, carbide measuring faces The Three-point internal gauge M312.157.S is an analogue internal measuring instrument designed for precise blind‑hole inspection in medium‑range industrial applications, providing stable centring and wear‑resistant contacts for repetitive workshop use. Three-point contact for stable centring Carbide measuring faces for wear resistance Ratchet stop for repeatable measuring force 325–350 mm medium-range coverage Precise medium-range measuring for components and assemblies The M312.157.S offers three-point internal measurement tailored to medium‑range tasks, classified for the 300–500 mm band where reach and stiffness must be balanced. Its accuracy ±0.012 mm and analogue vernier control make it suitable for routine quality checks and assembly verification where repeatable centring and contact stability are essential. The three contact points ensure the measured diameter is centred automatically, reducing operator influence and shortening inspection time without sacrificing accuracy. Durable contact faces and consistent measuring force Equipped with carbide measuring faces, the instrument resists wear even in abrasive production environments, preserving measurement reliability over long service intervals. The integrated ratchet stop standardises the applied measuring force, which limits variability between operators and supports consistent quality control documentation. A matt‑chrome scale and vernier improves contrast for clear read‑offs on the analogue display, combining durability with practical workshop ergonomics. Application benefits and practical workshop integration Designed for blind‑hole (sackloch) measurement, the gauge features a measuring depth of 140 mm, enabling access to recessed bores and internal features in larger components. Its construction and weight (approx. 12 kg) reflect a stable instrument intended for bench use and fixture integration rather than handheld quick checks. Supplied without an adjustment ring, the tool is optimised for controlled inspection workflows; consult Metav Werkzeuge for recommended set‑up accessories and fixture strategies to integrate the gauge into existing inspection routines. For reliable medium‑range internal measurements choose the Metav IndustryLine M312.157.S and contact Metav Werkzeuge GmbH in Emmerich for a tailored consultation and procurement assistance via info@metav-werkzeuge.com or +49 2822 7131930 Technical Data Article number: M312.157.S GTIN: 4054469158778 Category: Micrometers eClass: 21170335 ETIM: EC003590 Facts Measuring range: 325–350 mm Measuring depth: 140 mm Accuracy: 0.012 mm Weight: 12 kg Tariff number: 90173000 Special features Carbide measuring faces (HM) Scale and vernier matt chrome Analogue vernier readout Ratchet stop for consistent force Designed for blind‑hole measurement Delivery without setting ring FAQ How repeatable are measurements with this three‑point internal gauge? The M312.157.S achieves repeatable results through its three‑point contact design and ratchet stop; combined they reduce operator variance and support consistent readings within the specified ±0.012 mm accuracy. Can the gauge be used for through‑bores as well as blind holes? Yes, the internal measuring principle and three contact points are suitable for both blind and through bores, though this model is optimised for blind‑hole inspection as indicated by its design and measuring depth. What advantage do the carbide measuring faces provide? Carbide (HM) measuring faces on the M312.157.S increase wear resistance and maintain measurement integrity over extended use, which benefits serial inspection and abrasive environments. Is the instrument supplied calibrated or with certificates? The product data does not state an ISO 17025 calibration certificate; standard workshop calibration applies. For formal calibration services or certificates, Metav Werkzeuge can provide options and documentation. Are accessories included for adjustment or setting? Delivery is without a setting ring; recommended clamping or adjustment accessories should be selected according to the intended inspection workflow and can be discussed with Metav Werkzeuge. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
325-350mm Three-Point Internal Micrometer With Carbide Measuring Faces, 140mm Depth, 12kg Case Delivery - Metav IndustryLine
Take advantage of the combination of carbide measuring faces, a ratchet stop for consistent contact and the precise 325–350 mm measuring range to secure reproducible bore measurements; order the Three-point internal micrometer M312.157 directly via Metav Werkzeuge or ask our consultants if needed. Three-point internal micrometer M312.157 — 325–350 mm, carbide measuring faces (Metav IndustryLine) The Three-point internal micrometer M312.157 is a precision bore gauge designed for reliable internal diameter measurement in the 325–350 mm range, intended for workshop inspection and toolroom applications. Three-point measuring principle for stable centring Carbide measuring faces for abrasion resistance Ratchet stop for consistent measuring pressure 325–350 mm range for medium-sized bores Stable centring and repeatable results for medium bores The three-point measuring principle provides a centred contact with the bore, reducing runout and improving repeatability compared with single-contact probes. With carbide measuring faces only the contact surfaces wear, which extends service life under repeated use. The instrument is classified for the medium measuring range (300–500 mm), offering the best compromise between reach and handling for larger components such as housings, fixtures and medium-sized bores. Stated measuring accuracy is 0.012 mm while the analogue reading resolution is 0.005 mm, enabling dependable control measurements on the shop floor. Robust construction with operator-friendly handling A matt-chromed scale and vernier provide a corrosion-resistant reference that is easy to read under workshop lighting. The integrated ratchet stop ensures a consistent measuring force, which reduces operator-induced variation and supports meaningful comparison of repeated measurements. As an analogue instrument, the gauge requires no batteries and offers straightforward operation for experienced technicians and quality inspectors who favour tactile feedback and tried-and-tested mechanical systems. The solid build and carbide tips make it suitable for regular use in industrial environments. Practical scope of use and what's included Designed for internal diameter checks across a 325–350 mm span with a measuring depth of 140 mm, the instrument covers common inspection tasks in machining, assembly and maintenance. The delivery excludes an adjustment (setting) ring, so calibration or comparison against a ring gauge should be arranged if traceable reference checks are required. The three-point concept and robust contact faces make this gauge particularly suitable for repetitive checks where centring and wear resistance are priorities. Contact Metav Werkzeuge to discuss technical details or to arrange purchase of the M312.157 three-point internal micrometer and ensure it fits the required inspection routine Technical data SKU: M312.157 GTIN: 4054469119649 Harmonized tariff number: 90173000 Core technical data Measuring range: 325–350 mm Measuring depth: 140 mm Reading resolution: 0.005 mm Accuracy: 0.012 mm Special features Three-point internal measuring principle Carbide measuring faces Matt-chromed scale and vernier Ratchet stop Delivery without setting ring Analogue instrument FAQ What measurement range does this gauge cover? The three-point internal micrometer M312.157 covers internal diameters from 325 to 350 mm, making it suitable for medium-sized bores. What accuracy and resolution can be expected? The instrument is specified with an accuracy of 0.012 mm and an analogue reading resolution of 0.005 mm for repeatable workshop checks. Are the contact faces durable for industrial use? Yes, the M312.157 is fitted with carbide measuring faces that provide high abrasion resistance and longevity under repeated contact. Is any calibration or setting accessory included? Delivery is made without a setting ring; a calibration or setting ring should be used separately for traceable reference checks when required. How does the ratchet stop help in measurement? The ratchet stop provides a consistent measuring force, minimising variation between measurements and improving reproducibility of results. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
35-40mm Three-Point Internal Micrometer Self-Centring, 0.005mm Resolution, Supplied in Case - Metav IndustryLine
Take advantage of the combination of self‑centring three‑point contact, 0.005 mm accuracy and a compact 35–40 mm micro range for reproducible bore checks and tight assembly control. Order the instrument directly via Metav Werkzeuge or consult the Metav team for application advice. Three‑point internal micrometer M836.712 — self‑centring analogue gauge (35–40 mm) The three‑point internal micrometer M836.712 is an analogue, self‑centring instrument designed for precise internal diameter measurement in fine mechanical and toolmaking environments. Self‑centring three‑point contact High precision: 0.005 mm accuracy Analogue readout with defined measuring faces Precision where small dimensions decide The instrument delivers a measured accuracy of 0.005 mm, making it suitable for demanding inspection tasks where component interchangeability matters. The analogue mechanical mechanism provides tactile feedback during measurement, which helps experienced operators judge correct seating and contact. This combination of fine resolution and mechanical feel supports consistent quality checks on small bores without relying on electronic systems. Stable centring for repeatable bore readings The three‑point contact geometry is self‑centring, so the contact points automatically align with the internal axis of the bore. That geometry reduces eccentricity errors and improves repeatability, particularly in cylindrical housings and precision fittings. For processes that require repeated measurements across a batch, the self‑centring action minimises operator influence and shortens inspection time per part. Compact micro range with clear measuring faces Designed for the 35–40 mm span, this instrument falls within the micro range, which is ideal for fine mechanical assemblies and small tooling components. The device includes defined measuring faces that ensure secure contact and reliable readings even in shallow bores. The compact design balances reach and stiffness, enabling stable two‑hand or bench measurements while maintaining ease of handling in workshop environments. Integration into workshop routines and supply confidence As a Metav IndustryLine product, the gauge fits into a supply chain geared to workshops and small series manufacturers: robust mechanical design, straightforward handling and compatibility with traditional inspection workflows. The instrument supports standard measuring procedures and can be paired with existing inspection jigs or borescope checks to form a dependable quality control step without introducing complex electronics. For reliable micro‑bore measurement choose the Metav IndustryLine three‑point internal micrometer M836.712 — contact Metav Werkzeuge for tailored advice and fast delivery from Emmerich via info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: M836.712 GTIN: 4061905041501 eClass: 21170335 ETIM: EC003590 Brand: Metav IndustryLine Facts Measuring range: 35–40 mm Measuring range (max): 40 mm Measuring range (min): 35 mm Accuracy / resolution: 0.005 mm Display type: analogue (mechanical) Special features Self‑centring three‑point contact Defined measuring faces present Analogue mechanical gauge Category: internal micrometer (micrometer gauge) FAQ How accurate is the instrument in practical use? The three‑point internal micrometer M836.712 provides an indicated accuracy/resolution of 0.005 mm, which supports tight tolerance checks in precision assemblies. What measuring range does the gauge cover and how is it classified? The gauge covers 35–40 mm, placing it in the micro range for compact internal measurements ideal for fine mechanical and toolmaking applications. Is the contact geometry suitable for concentric bore measurement? Yes — the self‑centring three‑point contact ensures the measuring points align with the bore axis, improving concentricity and repeatability for internal diameter checks. Does the instrument use an electronic display or is it purely mechanical? The device is an analogue mechanical micrometer; readings are taken by tactile adjustment and mechanical indication rather than an electronic display. Is a calibration certificate supplied with the product? No specific calibration certificate is listed in the product data; the product information does not state delivery with a calibration document. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
3mm Three-Point Internal Micrometer Touchscreen, ISO 17025 Calibrated Wireless USB - Microtech Metrology
Take advantage of a compact, digitally driven measuring instrument that combines three-point contact stability with modern data transfer for faster inspection cycles; supplied calibrated to ISO 17025 with a traceable certificate and available directly from Metav Werkzeuge for prompt delivery. Three-point internal micrometer — Microtech Metrology, 2.0–3.0 mm range, colour touchscreen The Three-point internal micrometer is a micro-range instrument designed for precision measurement of small internal diameters in fine mechanical and watchmaking applications, delivering centred contact and high repeatability in confined bores. Compact micro-range 2.0–3.0 mm measurement Colour 1.5" touchscreen display Wireless and USB data output Delivered calibrated to ISO 17025 with certificate Precision where small tolerances matter The instrument is engineered for measurement tasks that demand reliable centring and minimal operator influence. The three-point contact geometry spreads the support evenly around the bore, reducing eccentricity and providing a stable reference for readings in the Micro range (2–3 mm). With a measuring depth of 12.5 mm, the gauge reaches shallow internal features while keeping the sensing geometry short and stiff — a decisive advantage when working on miniature components where even slight lever effects cause error. Streamlined recording and traceability An integrated microcomputer works with a 1.5" colour touchscreen display to present readings clearly and to reduce interpretation errors; the unit supports Wireless + USB data output for direct transfer into SPC systems or inspection reports. This connectivity shortens the feedback loop between shop floor and quality control, supporting rational decision-making and faster corrective action when measurements deviate from tolerances. Ready for inspection — calibrated and complete The tool is supplied as a set of two pieces and is delivered fully calibrated under ISO 17025, including a calibration certificate for immediate use in accredited inspection processes. This formal traceability removes an additional procurement step and supports documented quality assurance, which is particularly important for suppliers and manufacturers who must demonstrate conformity during audits. Built for dependable workshop integration Selected where space, repeatability and traceable results are priorities, this gauge reduces measurement variability and streamlines routine inspection workflows. The digital readout and data interfaces combine to lower recording errors and speed up batch acceptance, while the compact design and short measuring depth minimise handling time. For shops aiming to raise first-pass yield and maintain consistent part quality, this compact, calibrated instrument offers a pragmatic investment in measurement certainty. For a supply proposal, technical briefing or to arrange delivery via Metav Werkzeuge in Emmerich, please contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — Metav’s team can advise on integration and traceability requirements Technical data Article number: 133700203 GTIN: 4061905074349 Manufacturer: Microtech Metrology Digital display: Colour 1.5" touchscreen Data output: Wireless + USB Measuring range: 2.0–3.0 mm Measuring depth: 12.5 mm Set: 2 pieces per set Digital: yes Facts Measuring range min: 2.0 mm Measuring range max: 3.0 mm Measuring depth: 12.5 mm Pieces per set: 2 Display size: 1.5" Special features Three-point internal measurement geometry Integrated microcomputer Delivered calibrated to ISO 17025 Calibration certificate included Wireless and USB data interfaces Compact design for micro applications FAQ Is the instrument ready for use in accredited inspections? Yes. The three-point internal micrometer is delivered fully calibrated under ISO 17025 and includes a calibration certificate suitable for accredited inspection records. What measuring range does this gauge cover? The instrument measures internal diameters from 2.0 to 3.0 mm, a Micro classification suited for very small bores and fine mechanical parts. Does the device provide digital data output for SPC systems? Yes. The unit offers Wireless + USB connections to export measurements directly to data collection or SPC software. How many gauges are supplied in the set? This product is supplied as a set of two, allowing rapid tool changes or immediate redundancy for process checks. Is the display suitable for shop-floor use? The 1.5" colour touchscreen provides legible readings and simple menu navigation, designed for robust, practical use in inspection environments. Manufacturer / Responsible: Microtech, Nizhneyurkovska str., 45a, 04080 Kyiv, Ukraine, tool@microtech.tools
3–4mm Internal Micrometer With Carbide Measuring Faces, Calibration Ring Included, Plastic Case - Metav IndustryLine
Take advantage of a compact internal micrometer that combines high repeatability, carbide measuring faces and a dedicated 4 mm setting ring for reliable small‑bore inspection; order the instrument directly via Metav Werkzeuge or consult the technical team for application advice. M312.127 internal micrometer – carbide measuring faces, 3–4 mm range (Metav IndustryLine) The M312.127 is an inside micrometer designed for precision measurement of small bores and blind holes in fine mechanical and precision engineering applications. Carbide measuring faces for long life Measuring range 3.0–4.0 mm Supplied with setting ring and case Precise measurement where millimetres matter This inside micrometer is optimised for compact bores: the 3–4 mm measuring range targets fine mechanical tasks where control over small dimensions is decisive. With an accuracy of ±0.004 mm, the instrument bridges typical workshop requirements and higher‑precision inspection tasks, reducing the need for subsequent rework. The mechanical vernier readout offers an immediately interpretable result without electronic dependency, which simplifies routine checks while delivering consistently measurable outcomes. Durable contact surfaces and robust scale for repeatable readings Long service life is achieved through the carbide measuring faces, which resist wear when used repeatedly in production or inspection environments. The matt chrome‑plated scale and vernier improve contrast and lower glare for reliable reading, while the included setting ring (4 mm) allows quick verification of zero and simple calibration against a reference. Supplied in a protective case, the instrument is ready for transport and secure storage, preserving measurement stability between uses. Integrating a micro‑range tool into quality processes Classified as a micro‑range internal measuring instrument, this micrometer is particularly suitable for blind‑hole measurement tasks in component assembly and toolmaking. The compact design and focused range support fast sampling plans in production and precise spot checks during final inspection, contributing to shorter inspection cycles and improved throughput. Metav IndustryLine’s selective range ensures accessibility of precision tools for workshops and specialist manufacturers alike, combining practical usability with traceable performance attributes. Choose the Metav IndustryLine M312.127 for dependable micro‑range internal measurement; contact Metav Werkzeuge for tailored application guidance or to arrange your purchase Technical data Article number: M312.127 GTIN: 4054469119403 Eclass: 21170335 Tariff number: 90173000 Core measurements Measuring range: 3.0–4.0 mm Accuracy: ±0.004 mm Setting ring: 4 mm Readout: analog (vernier) Materials & features Measuring faces: carbide Scale and vernier: matt chrome‑plated Supplied with setting ring Supplied in protective case Suitable for blind‑hole measurement Category: internal micrometer (inside measuring instrument) FAQ What level of accuracy can be expected from this instrument? The M312.127 delivers an accuracy of ±0.004 mm, making it suitable for high‑precision internal measurements in fine mechanical and inspection tasks. Is the micrometer suitable for blind‑hole (sack‑hole) measurement? Yes, the instrument is designed for blind‑hole measurement and is supplied with a setting ring that facilitates secure contact and correct depth positioning. What materials are used for the measuring faces and scale? Measuring faces are made of carbide for wear resistance; the scale and vernier are matt chrome‑plated to aid legibility and reduce reflection. Does the delivery include accessories for verification and storage? The product is supplied with a 4 mm setting ring and a protective case for transport and storage. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
3–6 mm Internal Bore Gauge Set 0.001 mm Resolution, Includes Setting Rings And Extension, In Case - Metav IndustryLine
Reliable internal measurement for small diameters is achieved with a fine 0.001 mm graduation and a typical accuracy of ±0.004 mm; the compact design, hardened measuring faces and supplied setting rings ensure consistent results in workshop and production inspections — order the set directly via Metav Werkzeuge or consult our advisors for specification checks. M312.173 Internal Measuring Set — 3–6 mm, 0.001 mm resolution (Metav IndustryLine) M312.173 is a compact internal measuring set for precise inspection of small bores and blind holes in production and workshop environments 0.001 mm graduation for fine resolution Accuracy ±0.004 mm for reliable results Includes setting rings and extension Delivered in protective transport case Precision where repeatability matters The M312.173 internal measuring set provides metrology-grade resolution of 0.001 mm combined with a practical industrial accuracy of ±0.004 mm, making it suitable for tight tolerances in small-bore work. The instrument uses an analog vernier on a matt-chromed scale, which offers tactile, dependable readings without dependency on electronics; this is an advantage in harsh workshop conditions and simplifies long-term serviceability. The set’s compact measuring span concentrates stiffness where it is needed, improving repeatability during routine quality checks. Designed for blind-hole inspection and constrained bores Engineered specifically for internal diameters and blind-hole applications, the set includes setting rings (4 mm, 5 mm, 6 mm) and an extension to adapt to varying depths. These accessories enable quick on-bench calibration and transfer of reference values, supporting efficient quality control workflows. The geometry of the measuring anvils and the narrow range of the instruments reduce the risk of tilt in small bores, which means fewer re-measurements and a faster inspection loop in serial production. Robust construction for everyday workshop use The instruments feature hardened measuring faces and an analog mechanical design that resists shock and contamination compared with delicate electronic alternatives. The transport case supplied protects the set during storage and transit; its form factor is practical for workshop tool trolleys and the bench. The matt-chromed scale and vernier resist glare and are easy to read under typical workshop lighting, helping operators maintain consistent measuring technique and minimising reading error. Practical set-up and integration into inspection routines As a three-piece set, this equipment covers the common small-bore range while keeping inventory compact and manageable. The included extension and setting rings allow calibration against a traceable master before measurement, reducing setup time at the machine or inspection bench. Backed by the Metav IndustryLine range, the set fits into broader workshop provisioning strategies that prioritise robust tools and short delivery turnarounds, helping to streamline procurement and spare-part planning. Contact Metav Werkzeuge to request a technical specification check, a tailored quotation or further detail from our Emmerich team by email or phone Technical data Article number: M312.173 GTIN: 4054469119809 Category: Messgeräte / Messschrauben Manufacturer: Metav IndustryLine Facts Measuring range: 3–6 mm Resolution: 0.001 mm Accuracy: ±0.004 mm Pieces per set: 3 Weight: 1.3 kg Special features Analog reading with matt-chromed scale and vernier Hardened measuring faces Suitable for blind-hole measurements Includes setting rings (4, 5, 6 mm) and extension Supplied in transport case FAQ How precise is the M312.173 internal measuring set? The M312.173 delivers a reading resolution of 0.001 mm with an operational accuracy around ±0.004 mm, suitable for fine internal diameter control in production environments. Can this set be used for blind-hole measurements? Yes, the set is explicitly suitable for blind-hole measurement and includes setting rings and an extension to facilitate accurate checks at depth. Are the measuring surfaces durable? The measuring faces are hardened to provide wear resistance and repeatable contact, while the matt-chromed scale improves legibility and corrosion resistance. What type of reading does the set use and how is it interpreted? The instruments use an analog vernier on a matt-chromed scale with 0.001 mm graduation; interpretation follows standard vernier-reading technique for fine resolution. What is included in the delivery of the set? Delivery comprises three measuring instruments, setting rings (4 mm, 5 mm, 6 mm), an extension and a protective transport case Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
4.5-5.5mm Three-Point Internal Micrometer Self-Centring, Calibrated in Case - Metav IndustryLine
Take advantage of the combination of 0.005 mm measuring precision, a self‑centring three‑point design and hardened measuring faces for reliable bore inspection; order the instrument directly via Metav Werkzeuge or consult the technical team for application support. Three‑point internal micrometer M836.702 — Self‑centring design, 0.005 mm accuracy (Metav IndustryLine) The Three‑point internal micrometer M836.702 is a compact precision instrument for repeatable measurement of small internal diameters in fine mechanical and machining environments. Self‑centring three‑point design High accuracy 0.005 mm Hardened measuring faces Reduce rework with measurable accuracy The instrument delivers a certified mechanical accuracy of 0.005 mm, which translates into tighter tolerances during assembly and less rework on precision parts. By converting raw resolution into a clear production benefit, the micrometer shortens inspection loops and supports quality gates in machining workflows. The analog nonius readout provides a tactile feedback loop that experienced inspectors value for immediate verification, while the robust mechanical design maintains stable results under repeated use. Secure concentric measurements in small bores Designed as a three‑point, self‑centring device, the micrometer seats itself within the bore to establish a reproducible datum across measurements. This geometry reduces operator‑induced eccentricity and improves repeatability when inspecting small diameters in components such as valve seats, bushings or precision housings. With a measuring range of 4.5–5.5 mm and hardened measuring faces, the instrument is optimised for fine internal diameters where consistent contact geometry and surface resistance to wear are essential for long service life. Robust handling for everyday workshop use The mechanical construction emphasises longevity and simple maintenance: solid moving parts, a reliable spindle mechanism and clearly engraved scales make the tool suitable for daily use in both inspection benches and production cells. As an analogue micrometer with precise mechanical engineering, it performs without requiring batteries or electronics, which reduces maintenance points and keeps the inspection process straightforward. The combination of self‑centring functionality and hardened contact surfaces offers a practical, low‑complexity solution for high‑volume verification routines. For application advice or to equip a precision workshop with Metav IndustryLine instruments, contact Metav Werkzeuge GmbH at info@metav-werkzeuge.com or call +49 2822 7131930 to secure this three‑point internal micrometer with proven 5 µm repeatability. Technical Data SKU: M836.702 GTIN: 4061905041259 Manufacturer: Metav IndustryLine ECLASS: 21170335 ETIM: EC003590 Facts Measuring range: 4.5–5.5 mm Accuracy: 0.005 mm Analog instrument (nonius) Hardened measuring faces Special features Self‑centring three‑point design Intended for internal diameter measurement Mechanical, maintenance‑friendly construction Suitable for fine mechanical and machining applications FAQ How precise is the instrument for routine inspections? The three‑point internal micrometer M836.702 provides an accuracy of 0.005 mm, offering the repeatability required for fine mechanical and machining quality control. What advantage does the self‑centring design bring? Self‑centring geometry ensures that the measuring tips align concentrically in the bore, improving repeatability and reducing operator‑related eccentricity when using the M836.702. Which diameter range is covered by this instrument? The micrometer covers a measuring range of 4.5–5.5 mm, making it suitable for very small internal diameters such as precision bores and small housings. Are the measuring faces durable for workshop conditions? Yes; the instrument features hardened measuring faces, which resist wear and preserve measurement accuracy over prolonged use. Is the device suitable for continuous production inspections? Its mechanical robustness and analogue nonius readout make the M836.702 well suited for repeated checks in production and bench inspection environments. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
4.5mm Three-Point Internal Micrometer Self-Centering, 0.005mm Accuracy, Supplied In Case - Metav IndustryLine
Benefit from a compact measuring instrument that combines a self‑centring three‑point measuring head, a ±0.005 mm declared accuracy and a fine 0.001 mm reading resolution for reliable internal diameter checks; supplied in a protective transport case. Order the three‑point internal micrometer directly via Metav Werkzeuge or ask our consultants if needed. Three‑point internal micrometer — self‑centring, 4.0–4.5 mm (Metav IndustryLine) Three‑point internal micrometer for precision internal diameter measurement in fine mechanical and quality‑control applications Self‑centring three‑point measuring head Accuracy ±0.005 mm Measuring range 4.0–4.5 mm Includes protective transport case Precise readings for narrow bores and fine parts The instrument offers a mechanical, analogue measuring principle combined with a fine reading step of 0.001 mm, enabling repeatable checks where small deviations matter. With a stated accuracy of ±0.005 mm, the tool is suited to inspection tasks that demand sub‑hundred‑micrometre consistency rather than coarse gauging. The analogue scale and thimble construction keep the device straightforward to operate while the fine graduation supports confident interpolations; this balance makes it efficient for workshop measurement cycles and quality‑control routines. Stable contact and centred measurement for reproducible results The self‑centring three‑point head ensures the contact points align concentrically in bore measurements, reducing operator‑induced eccentricity and improving reproducibility when compared with single‑point probes. Hardened measuring faces contribute to long service life and wear resistance, preserving the instrument’s metrological behaviour over repeated cycles. This geometry is particularly advantageous for small diameters and precision components in watchmaking, valve seats, bearing bores or similar fine‑mechanical work. Ready for the shop floor — protected and serviceable Delivered in a protective transport case, the micrometer is setup for safe storage and straightforward handling between jobs. The analogue construction minimises electronic dependencies and simplifies maintenance; routine checks and cleaning extend operational life without specialised tools. Backed by Metav IndustryLine’s quality control at the European distribution site, the instrument fits into an assured supply chain that supports steady production and dependable inspection throughput. For application advice or to confirm suitability for a particular component, contact Metav Werkzeuge to discuss the Metav IndustryLine three‑point internal micrometer (SKU M836.701) and arrange procurement or technical clarification. Technical data Article number: M836.701 GTIN: 4061905041242 Manufacturer: Metav IndustryLine ECLASS: 21170335 ETIM: EC003590 Facts Measuring range: 4.0–4.5 mm Resolution / reading: 0.001 mm Accuracy: ±0.005 mm Type: analogue internal micrometer Special features Self‑centring three‑point measuring head Hardened measuring faces Supplied in protective transport case Category: Micrometers / internal micrometer FAQ What is the measuring range of the instrument? The measuring range is 4.0–4.5 mm for this three‑point internal micrometer (Metav IndustryLine, SKU M836.701). How accurate is the device for internal measurements? Declared accuracy is ±0.005 mm; the instrument provides consistent internal diameter checks for fine mechanical tasks. Does the measuring head centre itself in the bore? Yes. The self‑centring three‑point measuring head centres within the bore to reduce eccentricity and improve reproducibility. Are the measuring faces wear‑resistant? The instrument is fitted with hardened measuring faces to enhance durability and preserve measurement stability over time. Is the micrometer supplied ready for transport and storage? The micrometer is delivered in a protective transport case to safeguard the instrument between uses. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
40-100 mm Transport Case For Digital Three-Point Internal Micrometer - Metav IndustryLine
Take advantage of a compact storage solution that matches the 40–100 mm measuring range, keeps the related instruments together and is easy to handle at only 0.7 kg — a practical accessory for organised workshops. Order the case directly via Metav Werkzeuge or consult the technical team for compatibility details. Case for 312.218–312.222 (40–100 mm) — Metav IndustryLine protective case with compact handling Case for 312.218–312.222 (40–100 mm) designed as a dedicated transport and storage solution for matching measuring instruments, simplifying workshop logistics and instrument management Compatible with M312.218–M312.222 Designed for 40–100 mm instruments Lightweight at 0.7 kg for easy handling Secure storage that speeds up daily routines A dedicated storage solution for precision instruments improves turnaround and reduces handling time. The case for the M312.218–M312.222 series keeps the relevant tools organised, which speeds up changeovers and minimises the risk of misplacing small items. By consolidating instruments in one place, repeatability of measurement tasks is supported through consistent storage practices. The compact construction and modest 0.7 kg weight make the case simple to lift and position on workbenches or in tool trolleys, helping maintain an efficient workflow without adding unnecessary bulk. Compatibility and practical organisation for metrology workflows Compatibility with the 40–100 mm range means the case is purpose-built for a common segment of internal measuring instruments. Labelling and a clear item association reduce search time and support systematic inventory management. For workshops that prioritise traceability and rapid access, a product-focused container removes ambiguity between similar tool families, contributing to lean processes and predictable operational performance. This level of organisation complements existing calibration regimes and tool control measures, making daily quality checks and storage routines more reliable. Workshop resilience and supply-chain confidence Choosing a tailored accessory from an experienced supplier reduces procurement friction: parts and accessories arrive matched to instrument families and can be integrated into standard operating procedures immediately. Metav IndustryLine provides a steady supply chain and product consistency from its Emmerich hub, which functions as a European quality filter. This reliability supports continuous production and reduces the administrative overhead of sourcing ad hoc storage solutions, reinforcing predictable lead times and inventory control. For secure and compatible instrument storage choose the Metav IndustryLine case and contact Metav Werkzeuge for ordering or for advice on matching it to existing tool sets — info@metav-werkzeuge.com or +49 2822 7131930 Technical data SKU: M312.218.K GTIN: 4054469146829 Label: Koffer für 312.218-312.222 (40 - 100) 40 - 100 mm Numbers / Core technical data Weight: 0.7 kg Compatible measurement range: 40–100 mm Customs tariff number: 90173000 Special features / Design Suitable for articles M312.218–M312.222 Category: Accessories eClass: 21100103 FAQ Which instruments fit this case? The case is compatible with articles M312.218–M312.222, covering instruments with a 40–100 mm measuring range. What is the product SKU and GTIN? The SKU is M312.218.K and the GTIN is 4054469146829. How heavy is the case? The case weighs 0.7 kg, allowing easy handling and placement in workshops. How is the case classified? The item is listed under the accessories category (eClass 21100103) for measuring equipment. Which customs tariff applies? The customs tariff number for this item is 90173000. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
40-100mm Three-Point Internal Micrometer Self-Centering Set With Extensions, Plastic Case - Metav IndustryLine
Take advantage of the combination of high repeatability, compact standard range coverage and robust carbide measuring faces for reliable bore inspection in production and assembly. Order the three-point internal micrometer set directly via Metav Werkzeuge or consult the Metav advisers for application support. Three-point internal micrometer — Self-centring three-point design, 40–100 mm range (Metav IndustryLine) A three-point internal micrometer designed for precise bore measurement in workshop and inspection environments, offering a standard-range solution for routine engineering tasks. Self-centring three-point measuring principle Measurement range 40–100 mm Resolution 0.005 mm for fine reading Supplied in protective case, set of 6 Consistent bore measurement for production and inspection The three-point internal micrometer delivers repeatable internal diameters thanks to its self-centring measuring head and consistent contact geometry. The instrument is tailored for the standard measurement class (max. 100 mm), which balances reach and rigidity for everyday tasks in Machine and Metalwork. With a reading increment of 0.005 mm and an indicated accuracy of 0.006 mm, the device supports quality-control processes where tight tolerances and traceable repeatability are required. The three-point principle reduces the influence of off‑axis alignment, making readings more dependable on cylindrical and stepped bores. Robust contact surfaces and practical adjustment options Hardmetal measuring faces ensure long-term wear resistance and stable measurement results on typical workshop materials. The set includes setting rings at 50, 70 and 90 mm, enabling quick calibration across the working range and straightforward verification of the measuring chain. The analogue spindle and thimble mechanism give tactile feedback for fine positioning, while the compact construction aids ergonomic handling during repetitive checks. The combination of carbide faces and precise setting accessories reduces downtime for recalibration and keeps inspection cycles efficient. Designed for workshop efficiency and secure storage Delivered as a set with six pieces and protected in a transport case, the kit is arranged for fast selection and safe storage between shifts. The compact standard range size supports one-handed guidance without sacrificing stiffness, helping to maintain measurement integrity across multiple operators. For integration into established inspection routines, the instrument’s mechanical design minimises the need for frequent service while offering immediate visual confirmation of size changes. The product thus contributes to a streamlined production flow and reliable dimensional documentation. Contact Metav Werkzeuge today to secure this Metav IndustryLine three-point internal micrometer set (SKU M836.750) for dependable bore measurement — Metav’s consultants are available at info@metav-werkzeuge.com or +49 2822 7131930 to advise on selection and application. Technical Data Article number: M836.750 GTIN: 4061905041396 Brand: Metav IndustryLine Facts Measurement range: 40–100 mm Minimum range: 40 mm Maximum range: 100 mm Resolution / reading: 0.005 mm Indicated accuracy: 0.006 mm Set contents: 6 pieces Setting rings: 50, 70, 90 mm Extension length: 150 mm Special features Self-centring three-point measuring head Carbide measuring faces for wear resistance Analogue instrument (non-digital) Delivered in protective case for transport Intended for internal diameter measurement ECLASS: 21170335 FAQ What measurement range is covered by this three-point internal micrometer set? The set covers internal diameters from 40 to 100 mm, making it suitable for standard workshop and machine‑building inspection tasks. Is the instrument suitable for routine quality control in a production line? Yes, the Metav IndustryLine three-point internal micrometer (SKU M836.750) offers a resolution of 0.005 mm and an indicated accuracy of 0.006 mm, which supports routine quality-control checks and repeatable measurements. How are calibration and setting handled for the micrometer? Calibration is performed using the supplied setting rings (50, 70, 90 mm) and the extension option of 150 mm; these accessories permit quick in‑house verification of the measuring chain. Are the measuring faces durable enough for workshop use? The measuring faces are made of hardmetal (carbide), which provides high wear resistance and long service life under normal workshop conditions. Can this instrument be used on stepped bores and standard cylindrical bores? The self-centring three-point design is optimised for both cylindrical and stepped internal geometries, improving centring and repeatability in typical bore inspection applications. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com
40-50mm Three-Point Bore Micrometer 1.5" Colour Touchscreen, ISO 17025 Calibrated, Wireless/USB - Microtech Metrology
Take advantage of ISO 17025 traceability and a 0.004 mm accuracy together with reliable Wireless + USB data transfer for seamless integration into quality workflows. Order the Three-Point Internal Micrometer directly via Metav Werkzeuge or contact the consultants for an application check. Three-Point Internal Micrometer (40–50 mm) — Wireless + USB, 1.5" Colour Touchscreen (Microtech Metrology) The Three-Point Internal Micrometer is a digital precision instrument for repeatable internal diameter measurement in production control and component inspection. Wireless + USB data output 1.5" colour touchscreen display ISO 17025 calibrated with certificate Measuring range 40–50 mm, depth 240 mm Consistent traceability for quality control This instrument delivers laboratory-grade traceability through its ISO 17025 calibration, supplied with a calibration certificate. The certified adjustment ensures measurement results can be documented and audited, which is essential in production control and incoming inspection. With a stated accuracy of 0.004 mm and a fine display resolution of 0.0001 on the digital readout, the device reduces uncertainty in tolerance-critical checks and supports documented quality systems. Efficient data handling and workshop integration Equipped with Wireless + USB outputs and a 1.5" colour touchscreen, the device accelerates data capture and reduces manual transcription. The digital interface simplifies zeroing, unit switching and data export, enabling direct transfer into inspection software or SPC systems. As a result, inspection cycles shorten and traceable measurement records become standard practice on the shop floor, supporting faster decision making and fewer rejects. Designed for practical measurement tasks The three-point measuring head and 40–50 mm measuring range combine to give a compact yet stable solution for internal diameters, while the 240 mm measuring depth allows access to recessed bores. The included adjustment ring facilitates fine centring and repeatable contact pressure, improving reproducibility across operators. Built as a digital gauge, the instrument is suitable for routine testing, tool setup and sample inspection where reproducible bore measurement is required. Contact Metav Werkzeuge for a specification sheet or application advice on how the Microtech Metrology three-point internal micrometer can be integrated into existing inspection processes — phone +49 2822 7131930 or e‑mail info@metav-werkzeuge.com Technical data Article number: 133705010 GTIN: 4061905074264 Manufacturer: Microtech Metrology Facts Measuring range: 40–50 mm Measuring depth: 240 mm Accuracy: 0.004 mm Readout resolution: 0.0001 Display: Colour 1.5" touchscreen Special features Digital instrument Data output: Wireless + USB Adjustment ring: included ISO 17025 calibration and certificate supplied Three-point internal measuring principle FAQ Is this instrument suitable for precision bore measurement in a production environment? The Three-Point Internal Micrometer from Microtech Metrology (SKU 133705010) is designed for production and inspection tasks requiring repeatable internal diameter checks within the 40–50 mm range. Does the device come with traceable calibration documentation? Yes, the micrometer is delivered fully calibrated to ISO 17025 and includes the calibration certificate for audit and traceability purposes. How are measurement results exported from the instrument? Measurement data can be exported via the unit’s Wireless + USB interfaces; this supports direct logging into inspection software or manual data capture workflows. What accuracy and display resolution can be expected during measurements? The instrument specification states an accuracy of 0.004 mm with a readout resolution of 0.0001, suitable for tight-tolerance internal diameter measurements. 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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