What is the difference between a 2-point internal micrometer and a 3-point internal micrometer?

Precision blind‑hole inspection is facilitated by the combination of a self‑centring three‑point head, carbide measuring faces and an accuracy of ±0.005 mm; order the MS908.663 via Metav Werkzeuge or consult our advisors for specification support. MS908.663 — three‑point internal micrometer with self‑centring head and ±0.005 mm accuracy (Metav IndustryLine) A self‑centring three‑point internal micrometer MS908.663 designed for fast, repeatable measurement of blind holes in workshop and production environments. Self‑centring three‑point measuring head Accuracy ±0.005 mm for repeatable results Carbide measuring faces for long service life Delivered in a protective transport case Precise blind‑hole measurement with minimal operator error The three‑point measuring concept produces a natural centre‑finding action that stabilises the instrument inside a blind hole, reducing eccentricity and operator influence. With an analogue reading of 0.005 mm and an accuracy of ±0.005 mm, this gauge is suited to quality‑critical internal diameter checks where small deviations matter. The vernier‑style scale enables direct mechanical reading without reliance on batteries or electronics, supporting uninterrupted inspections on the shop floor. This combination of mechanical reliability and fine resolution promotes consistent pass/fail decisions during incoming inspection and first‑off checks. Built for demanding workshop use and long‑term repeatability Constructed with carbide measuring faces, the instrument resists wear in daily use and preserves measuring integrity over longer service intervals. The instrument’s physical length of 145 mm and measuring span of 100–125 mm places it in the standard measuring range for general machine‑shop applications, offering a practical balance between reach and rigidity. The robust design and hardened contact surfaces make the micrometer tolerant of routine handling; the supplied protective transport case reduces the risk of damage during storage and transit, keeping calibration stability intact. Practical advantages for process control and inspection routines Using a self‑centring, three‑point internal gauge streamlines internal diameter checks in blind holes, bores and recesses, enabling faster set‑ups at the bench or on the machine. The instrument’s repeatable seating and fine resolution help to reduce scrap and rework by catching dimensional drift earlier in the process. As an analogue instrument it integrates easily into established measurement routines and inspection sheets, while its mechanical simplicity minimises downtime compared with devices that rely on electronics. Typical applications and handling guidance The micrometer is intended for blind‑hole and internal diameter measurements in general engineering, toolroom checks and production quality control. For best results, ensure clean contact surfaces and a stable seating in the bore before taking a reading; the three‑point head will centre itself, but careful alignment reduces measurement scatter. Periodic verification against a gauge block or master ring is recommended to confirm ongoing accuracy and to schedule recalibration when necessary. The instrument’s durability and simple operation make it a practical choice for repetitive internal measurements on ferrous and non‑ferrous components. For reliable blind‑hole inspection with Metav IndustryLine precision, contact Metav Werkzeuge for purchase and expert advice by email at info@metav-werkzeuge.com or by telephone on +49 2822 7131930 Technical data Article number: MS908.663 Name: Three‑point internal micrometer Brand: Metav IndustryLine Type: Analogue internal measuring instrument Numbers / Core technical data Measuring range: 100–125 mm Measuring length: 145 mm Reading / Resolution: 0.005 mm Accuracy: ±0.005 mm Special features / Design Self‑centring three‑point measuring head Carbide measuring faces Delivered in a protective transport case Suitable for blind‑hole (blind bore) measurement FAQ How does the three‑point head help with blind‑hole measurement? The three‑point geometry of the MS908.663 automatically centres inside a blind hole, reducing eccentricity and improving repeatability of internal diameter readings. What level of accuracy and resolution can be expected? The instrument provides a resolution of 0.005 mm with an accuracy of ±0.005 mm, making it suitable for tight tolerance internal checks in production and workshop environments. Is the gauge suitable for frequent workshop use? Yes; the carbide measuring faces and robust mechanical construction are designed for daily inspection tasks and extended service life. Can this micrometer measure other internal features besides blind holes? While optimised for blind holes, the instrument can be used for internal diameter checks, recesses and similar internal features where the three‑point contact can seat reliably. What is included with the instrument on delivery? The MS908.663 is supplied complete with a protective transport case to protect the gauge during storage and transport. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

Take advantage of the combination of precise three-point measurement, wireless data output with USB, and full ISO 17025 calibration for dependable bore inspection and traceable results; order via Metav Werkzeuge or consult the specialists for application advice. Three-point internal micrometer — digital, 100–150 mm measuring range, Wireless + USB, Microtech Metrology The Three-point internal micrometer is a digital, workshop-ready instrument for repeatable bore and internal diameter checks from 100 to 150 mm, designed for production quality control and laboratory verification. ISO 17025 calibration certificate included Wireless and USB data output Colour 1.5" touchscreen display High repeatability: 0.004 mm accuracy Reliable measurement where it matters The instrument delivers consistent three-point measurement across bores, reducing orientation error and improving repeatability compared with single-point probes. With a specified accuracy of ±0.004 mm, the device supports quality control procedures that demand tight tolerances. The standard-sized measuring range classifies the tool for typical workshop and machine‑shop applications, offering a practical balance between reach and rigidity for medium-sized components. Fast data capture and traceability for production Equipped with Wireless and USB data outputs and a Colour 1.5" touchscreen, the device streamlines data acquisition and logging without manual transcription. The high-resolution reading (0.0001 mm) ensures fine increments are visible on the display, while digital output supports integration into measurement software or SPC workflows. This lowers administrative effort and helps maintain a clear audit trail for batch releases. Practical handling that reduces operator influence The included adjustment ring simplifies zeroing and routine checks, and the three-contact measuring head minimises tilting errors during insertion into bores. A measuring depth of 250 mm allows access to deeper cavities while preserving stability. These ergonomic and mechanical details reduce the effect of operator technique on the measurement result, improving reproducibility across shifts. Certified delivery and industrial readiness This micrometer is supplied fully calibrated to ISO 17025 standards and includes a calibration certificate, making it immediately suitable for accredited quality environments. The combination of high accuracy, digital interfacing and certified calibration positions the instrument as a reliable tool for incoming inspection, in‑process checks and final acceptance testing. Contact Metav Werkzeuge for tailored advice and secure a certified Microtech Metrology three-point internal micrometer (SKU 133715010) with ISO 17025 calibration for your measurement process Technical data Article number: 133715010 GTIN: 4061905074295 Manufacturer: Microtech Metrology ECLASS: 21170335 ETIM: EC003590 Facts Measuring range: 100–150 mm Resolution (reading): 0.0001 mm Accuracy: ±0.004 mm Measuring depth: 250 mm Digital display: Colour 1.5" touchscreen Data output: Wireless + USB Calibration: ISO 17025 certificate included Special features Three-point internal measurement Adjustment ring included Digital operation for SPC integration Suitable for workshop and lab use Delivered calibrated for traceability FAQ Is this instrument supplied calibrated? Yes. The Microtech Metrology three-point internal micrometer (SKU 133715010) is delivered fully calibrated to ISO 17025 and includes the corresponding calibration certificate. Which measurement range does the instrument cover? The device covers a measuring range of 100–150 mm, which places it in the standard class for workshop and machine‑shop bore inspection tasks. How are measurement results exported? Measurement data can be exported either wirelessly or via USB, enabling direct transfer into inspection software or SPC systems from the Microtech Metrology instrument. What resolution and accuracy can be expected? The display resolution is 0.0001 mm and the specified accuracy is ±0.004 mm, suitable for stringent dimensional checks in production control. Is the touchscreen suitable for use with gloves? The 1.5" colour touchscreen provides clear readout and simple menus; for glove operation, common shop gloves may limit sensitivity—repeatable results are maintained via the device’s stable mechanical design. Manufacturer / Responsible: Microtech, Nizhneyurkovska str., 45a, 04080 Kyiv, Ukraine, tool@microtech.tools

The combination of precise self‑centring contact, a compact 10–12 mm measuring range and robust carbide faces ensures fast, repeatable blind‑hole measurements with minimal setup. Order the instrument directly via Metav Werkzeuge or consult the team for application advice. Metav IndustryLine Three‑Point Internal Micrometre MS908.652 — self‑centring, 10–12 mm range The Three‑Point Internal Micrometre MS908.652 is a compact analogue micrometre designed for precise diameter measurement inside blind holes and small bores in the 10–12 mm range. Self‑centring three‑point contact Measuring range 10–12 mm Accuracy 0.004 mm Carbide measuring faces Reliable centring for blind‑hole measurement A three‑point contact ensures rapid and reproducible alignment in blind holes, reducing repositioning time and measurement scatter. The micrometre’s self‑centring mechanism automatically locates the bore centre, so the operator obtains a consistent contact geometry on each measurement. With a measuring span of 10–12 mm the instrument is tailored to micro components and small bores where repeatability and short setup times are essential, improving throughput in small‑part inspection tasks. Durable contact surfaces for longer service life The measuring faces are manufactured as carbide contacts to resist wear and preserve accuracy during frequent use. The unit’s analogue design gives a tactile feel and straightforward reading, paired with a fine adjustment capability to approach tight fits carefully. The compact body (length approx. 54.5 mm) is suited to constrained access, while a setting ring (size 10) is included for verification and quick zeroing, supporting stable traceability in routine quality checks. Practical workflow advantages and workshop integration This three‑point micrometre combines simple operation with technical reliability: measurements are quick, calibration checks are straightforward and the tool integrates easily into existing inspection benches. Classified in the Micro range (max. 10–100 mm), it fulfils typical needs of precision engineering, watchmaking and small‑component production where stiffness, reach and single‑hand operation must be balanced. Metav’s distribution ensures European stock and reliable delivery from Emmerich. Request application guidance or order details from Metav Werkzeuge for the Metav IndustryLine three‑point internal micrometre MS908.652 — contact info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: MS908.652 Brand: Metav IndustryLine Category: Micrometres Type: Three‑point internal micrometre Measuring range: 10.0–12.0 mm Minimum range: 10 mm Maximum range: 12 mm Accuracy: 0.004 mm Length: 54.5 mm Setting ring: 10 Self‑centring three‑point contact Carbide (hard metal) measuring faces Analogue operation (nonius style) Suitable for blind‑hole bores FAQ How does the three‑point contact improve measurement in blind holes? The three‑point geometry of the MS908.652 centres automatically in a bore, giving a stable contact triangle that reduces wobble and improves repeatability compared with single‑point probes. What measurement accuracy can be expected from this instrument? The instrument is specified with an accuracy of 0.004 mm; in routine use this delivers repeatable diameter readings for small‑bore inspection tasks. Is the micrometre suitable for workshop use or only for laboratory conditions? Designed for practical workshop use, the robust carbide faces and analogue adjustment make the MS908.652 resilient to frequent handling while keeping measurement quality high. How is the instrument returned to zero or checked on site? A setting ring (size 10) is provided for quick verification and zeroing of the micrometre before inspection runs. Which components and applications benefit most from this micrometre? Small bores, precision fittings, watch‑ and micro‑mechanical parts and any blind‑hole diameters in the 10–12 mm range benefit from the compact form, self‑centring contact and carbide faces of the MS908.652. Metav IndustryLine: Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

Take advantage of the combination of precise 0.005 mm reading, a self‑centring three‑point measuring mechanism and interchangeable measuring inserts to ensure reproducible internal measurements of blind bores in the standard workshop range. Order the instrument directly via Metav Werkzeuge or consult the Metav team for application advice. Three‑point internal micrometer MS908.665 — self‑centring, 150–175 mm range (Metav IndustryLine) The three‑point internal micrometer is an analogue internal measuring instrument designed for reliable measurement of blind bores and internal diameters in the workshop and production environment. Self‑centring three‑point design Measurement range 150–175 mm Analogue reading 0.005 mm resolution Hardened measuring faces, interchangeable insert Reliable metrology for internal diameters and blind bores The three‑point design offers consistent contact on the bore surface, enabling reproducible centring even in deep blind holes. With a measurement range of 150–175 mm this instrument fits the standard class of workshop metrology where reach, stiffness and one‑hand operation are required. The analogue scale provides a clear 0.005 mm reading and an equivalent stated accuracy, which supports routine quality checks and rapid go/no‑go decisions on the shop floor. Practical handling and application benefits for production Interchangeable measuring inserts allow adaptation to differing bore geometries without replacing the whole instrument, reducing downtime and consumable cost. The self‑centring mechanism simplifies alignment and lowers operator variability, which increases throughput and decreases rework. Designed for internal measurements including blind bores, the tool is particularly suitable for machine shops, toolrooms and maintenance departments that require straightforward, rugged measuring devices for repeat measurements. Construction and durability tailored to industrial use Hardened measuring faces reduce wear and maintain measurement fidelity over long service periods; the instrument’s analogue mechanics are engineered for robustness rather than electronic sensitivity. The combination of hardened anvils, an interchangeable insert system and solid construction ensures long‑term stability under workshop conditions and predictable measurement behaviour when performing internal diameter checks on components. Contact Metav Werkzeuge in Emmerich for tailored advice on the MS908.665 three‑point internal micrometer and to arrange delivery from stock — info@metav-werkzeuge.com | +49 2822 7131930 Technical Data Article number: MS908.665 Name: Three‑point internal micrometer (Dreipunkt‑Innenmessschraube) Manufacturer: Metav IndustryLine Core technical data Measurement range: 150–175 mm Reading / resolution: 0.005 mm Accuracy: 0.005 mm Length: 145 mm Analogue instrument Special features Self‑centring three‑point design Hardened measuring faces Interchangeable measuring insert Suitable for blind bores Analogue scale, workshop grade FAQ What measuring range does the MS908.665 cover? The MS908.665 three‑point internal micrometer by Metav IndustryLine covers a measurement range of 150–175 mm. How fine is the resolution and what accuracy is stated? The instrument provides an analogue reading with 0.005 mm resolution and a stated accuracy of 0.005 mm for routine workshop control. Is the design suitable for blind hole measurements? Yes, the three‑point geometry and self‑centring action of this micrometer make it particularly suitable for reliable measurements in blind bores. Can the measuring faces be replaced if worn? The MS908.665 features an interchangeable measuring insert system; hardened faces prolong service life and can be renewed through the insert mechanism. For which workshop tasks is this micrometer intended? The instrument is designed for internal diameter checks in machine shops, toolrooms and maintenance operations where robust, repeatable analogue measurement is required. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

Take advantage of the combination of self‑centring, carbide measuring faces and high repeatability for reliable blind‑hole inspection; the compact 20–25 mm range is ideal for fine mechanical and precision engineering tasks. Order the instrument directly via Metav Werkzeuge or request specification advice from our consultants. Three‑point internal micrometer MS908.655 — self‑centring, carbide measuring faces (20–25 mm) by Metav IndustryLine The Three‑point internal micrometer MS908.655 is a self‑centring internal measuring instrument designed for accurate measurement of blind holes in precision engineering and workshop environments, offering an analogue reading with fine resolution for repeatable results Self‑centring three‑point mechanism Carbide measuring faces for wear resistance Measurement accuracy 0.004 mm Compact range 20–25 mm for fine parts Precise blind‑hole measurement with minimal setup The instrument delivers high repeatability through its self‑centring three‑point mechanism, which ensures concentric contact inside blind bores without complex alignment. With a rated accuracy of 0.004 mm and an analogue reading of 0.005 mm, the device is engineered for tasks where micrometre‑level certainty matters; this combination reduces rework and measurement uncertainty in small components. The compact design is especially suited to micro fabrication and precision inspection of housings and bores. Durable contact faces and dependable mechanical operation Carbide contact faces provide excellent wear resistance, maintaining measurement integrity over extended use in workshop conditions. The analogue nonius construction offers tactile feedback preferred in many inspection routines and requires no batteries or electronic interfaces, supporting uninterrupted operation on the shop floor. The included adjustment ring (25) enables straightforward zeroing and fine setting, while the robust build keeps the mechanical play to a minimum for consistent results. Designed for micro‑range quality control and fine parts Classified in the micro range (suitable for 10–100 mm scales), the 20–25 mm span targets small‑format parts such as precision sleeves, bearing bores and microassemblies. Its compact dimensions and precise geometry make it practical for use in bench inspection and in‑process checks where access is restricted. The measuring faces and frame geometry have been selected to balance stiffness and accessibility, ensuring stable measurements even when handling delicate components. Integration into workshop procedures and traceability The analogue three‑point gauge complements digital and traditional inspection tools as part of a consistent metrology chain; repeatable manual results simplify tolerance checks and go/no‑go decisions. Further technical documentation and measurement data are available from Metav Werkzeuge for integration into QA processes and production control. For operators transitioning from standard calipers or bore gauges, the instrument provides a clear step up in concentricity control without introducing complex electronics. For specification advice or to secure the MS908.655 from Metav IndustryLine, contact Metav Werkzeuge for personalised guidance at info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: MS908.655 Manufacturer: Metav IndustryLine Product: Three‑point internal micrometer Numbers / Core technical data Measuring range: 20–25 mm Reading / resolution: 0.005 mm Accuracy: 0.004 mm Length: 90 mm Special features / Materials Self‑centring three‑point mechanism Carbide measuring faces Analogue nonius scale Suitable for blind‑hole measurement FAQ What measuring range does the MS908.655 cover? The MS908.655 covers a measuring range of 20–25 mm, making it suitable for small bores and fine mechanical components. How precise is the instrument for repeatable checks? The three‑point internal micrometer achieves a stated accuracy of 0.004 mm with an analogue reading of 0.005 mm, designed for consistent bench and in‑process inspection. Are the measuring faces wear resistant? Yes, the contact faces are made of carbide, providing enhanced wear resistance and long‑term dimensional stability for routine use. Is the gauge suitable for blind‑hole applications? The instrument is explicitly intended for blind‑hole measurement, featuring a self‑centring mechanism that ensures concentric contact within such bores. Does Metav IndustryLine provide technical support for integration into QA procedures? Metav IndustryLine and Metav Werkzeuge can supply further technical documentation and advice to assist with integration of the MS908.655 into quality control workflows. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

Take advantage of the combination of precise 0.004 mm accuracy, a self‑centring three‑point measuring head and carbide measuring faces for consistent blind‑hole measurement; order directly via Metav Werkzeuge or contact the consultancy team for tailored advice. MS908.656 Three‑Point Internal Micrometer — Self‑centring, 25–30 mm range (Metav IndustryLine) A three‑point internal micrometer designed for accurate measurement of blind holes and restricted bores in the 25–30 mm range, combining a compact form with stable contact geometry. Three‑point self‑centring measuring head Measuring range 25–30 mm Carbide measuring faces for wear resistance Analogue drive with 0.005 mm resolution Consistent results for blind‑hole inspection The instrument's self‑centring three‑point system guarantees repeatable contact with bore surfaces, reducing setup variance and rework in production inspection. The compact contact geometry suits restricted bores where standard callipers cannot reach, while the analogue drive and fine spindle allow controlled approach to the measuring surfaces. This configuration translates directly into fewer rejected parts and more reliable pass/fail decisions on the shop floor. Precision that meets workshop demands With a documented accuracy of 0.004 mm and a readable resolution of 0.005 mm, the device sits between general workshop tools and high‑precision instruments. The mechanical design and robust spindle ensure stable readings even in routine quality control. For applications that require exact internal diameters in small assemblies, this micrometer provides a balance of sensitivity and practical handling without invoking complex electronic systems. Durable contact surfaces for long service life The measuring faces are made from carbide, offering superior wear resistance under frequent use and abrasive conditions. That hard contact material preserves the reference geometry over many cycles and keeps measurement uncertainty low. An adjustment ring marked 25 assists with quick reference when setting or checking the nominal diameter, making repetitive tasks more efficient and less error‑prone. Compact format for fine mechanical work Classified in the micro range by its 25–30 mm span, the tool is ideal where small, precise components are involved. The short overall length supports handling in confined environments and maintains torsional stiffness for reliable contact pressure. As an analogue internal measuring instrument, it offers familiar operation for technicians while delivering the benefits of a three‑point system designed specifically for blind‑hole measurement. For precise and repeatable blind‑hole measurement, contact Metav Werkzeuge to request the Metav IndustryLine three‑point internal micrometer MS908.656 or to speak with a specialist at info@metav-werkzeuge.com / +49 2822 7131930 Technical Data Article number: MS908.656 Name: Three‑point internal micrometer Manufacturer: Metav IndustryLine Facts Measuring range: 25–30 mm Resolution: 0.005 mm Accuracy: 0.004 mm Length: 90 mm Special features Self‑centring three‑point measuring head Carbide measuring faces Analogue micrometer design Adjustment ring marked 25 Suitable for blind‑hole measurement FAQ What measuring range does this instrument cover? The three‑point internal micrometer MS908.656 covers a measuring range of 25–30 mm, suited to small‑bore and blind‑hole applications. Is this micrometer suitable for blind‑hole measurement? Yes, the self‑centring three‑point system of the Metav IndustryLine three‑point internal micrometer is specifically designed to measure blind holes and restricted bores reliably. What accuracy and resolution can be expected? The instrument provides an accuracy of 0.004 mm with an analogue readable resolution of 0.005 mm, offering precise control for workshop inspections. Are the measuring faces durable for repeated use? The measuring faces are made of carbide, ensuring wear resistance and long‑term stability of the contact geometry under frequent measurement cycles. How is the instrument adjusted for repetitive tasks? An adjustment ring marked 25 is provided for quick reference and repeatable setting when working with the same nominal diameters. Is this a digital instrument? No, the MS908.656 is an analogue internal micrometer, combining mechanical reliability with a fine spindle for controlled readings. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

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

Combining self-centring operation with a guaranteed 0.005 mm accuracy across an 87–100 mm measuring band, this instrument delivers repeatable results for blind-hole inspection and internal-diameter checks. Order via Metav Werkzeuge or request expert advice from our consultants for application-specific guidance. Three-Point Internal Micrometer MS908.662 — Self-centring, 87–100 mm, 0.005 mm accuracy (Metav IndustryLine) A compact, three-point internal micrometer MS908.662 engineered for precise measurement of blind bores and internal diameters in the 87–100 mm range. Self-centring measuring head 87–100 mm measurement range 0.005 mm graduation and accuracy Carbide measuring faces for durability Precision for blind-hole measurements that must be repeatable The three-point measuring principle combines three symmetrically arranged anvils to centre automatically within the bore, reducing alignment errors and improving repeatability. With a declared accuracy of 0.005 mm and a matching reading resolution of 0.005 mm, the instrument is configured for reliable internal measurements where tight tolerances apply. The mechanical three-point arrangement compensates for minor irregularities in bore geometry and, compared with single-anvil probes, significantly reduces positional uncertainty; this is particularly important when inspecting blind bores where full insertion of contact probes is not possible. Durable, workshop-ready design for routine inspection Constructed with carbide measuring faces, the unit withstands abrasive and repetitive contact without rapid wear, thus maintaining measurement integrity over time. The analogue vernier operation provides a dependable mechanical reading method that does not rely on batteries, ensuring continuous availability on the shop floor. The compact overall length (114 mm) and a preset setting ring at 87 mm allow straightforward setup for the nominal range and make the tool suitable for tight-access tasks. These attributes combine to reduce downtime and simplify daily inspection routines in toolrooms and maintenance departments. Micro-class capability and typical use cases With a maximum measuring range of 100 mm, this instrument falls within the micro classification for compact internal gauges, a category valued for high precision in confined spaces. Typical applications include fine mechanical assembly, toolmaking, quality control of small to medium-sized components, and inspection of blind-hole bores in housings and castings. The self-centring function and carbide contacts make it an effective choice for repeated checks during production runs and for settings where consistent, operator-independent measurement behaviour is required. For tailored application advice or to secure this self-centring internal micrometer from Metav Werkzeuge in Emmerich — contact info@metav-werkzeuge.com or call +49 2822 7131930 for consultancy and delivery options Technical Data Article number: MS908.662 Product: Three-point internal micrometer Brand: Metav IndustryLine Facts Measuring range: 87–100 mm Reading / Resolution: 0.005 mm Accuracy: 0.005 mm Overall length: 114 mm Setting ring: 87 mm Special features Self-centring three-point head Carbide measuring faces Analogue vernier operation Suitable for blind-hole bores FAQ Is this instrument suitable for measuring blind bores? Yes. The MS908.662 three-point internal micrometer from Metav IndustryLine is specifically designed for accurate measurement of blind-hole bores within the 87–100 mm band. What accuracy and resolution are provided? The tool offers a declared accuracy of 0.005 mm with a reading resolution of 0.005 mm, making it suitable for precise workshop inspection tasks. What are the measuring faces made from? The measuring faces are carbide-tipped to provide wear resistance and long-term dimensional stability under repeated use. Does the instrument require batteries or electronics? No. The device uses an analogue vernier principle and is entirely mechanical, eliminating the need for batteries and reducing maintenance points. For which workshop tasks is the micrometer best suited? Ideal for fine mechanical work, toolroom checks and production inspection of internal diameters and blind holes where compact, high-precision measuring tools are required. Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com