200-225mm Three-Point Internal Micrometer Digital With Locking, Hardened Measuring Faces, Case Included - Metav IndustryLine

The combination of three-point centring, digital readout with mm/inch switching and a 200–225 mm measuring range ensures repeatable internal diameter checks for medium-sized components; the instrument is ideal for shop-floor quality control and fixture inspection. Order the item directly via Metav Werkzeuge or consult our advisers for application guidance.

Three-point internal micrometer M312.260 — Digital readout, 200–225 mm (Metav IndustryLine)

The three-point internal micrometer delivers centred internal measurements for medium-range bores and housings, suited to workshop inspection and fixture verification.

• Digital readout with mm/inch and ABS function
• Measuring range 200–225 mm for medium assemblies
• Hardened measuring faces for long-term accuracy
• Supplied without setting ring for flexible integration

Repeatable centring and measurable precision for medium bores

The three-point contact geometry provides a natural centring effect inside cylindrical bores, minimising eccentricity and producing a consistent datum for each measurement. With a nominal accuracy of 0.008 mm and a digital reading step of 0.001 mm, the instrument bridges the gap between coarse workshop gauges and high-end metrology devices. This level of accuracy is appropriate for production control of bearings, housings and machined sleeves where deviations of a few micrometres matter but ultra‑lab precision is not required. The slightly elevated instrument mass contributes to stable handling during internal measurements.

Clear digital functions to speed inspection and data capture

The integrated digital display offers ON/0, mm/inch, ABS, PRESET and HOLD functions to support rapid measurement cycles and straightforward unit changes. A dedicated RB 4 data output allows numeric transfer to data management systems or inspection stations, simplifying traceability and statistical process control. The combination of immediate on‑screen values and a data interface reduces transcription errors and accelerates batch inspection workflows, supporting lean quality routines and integration into digital documentation.

Durable contact surfaces and practical handling in workshops

Hardened measuring faces reduce wear and preserve the calibrated geometry for longer service life, contributing to consistent results under frequent use. The instrument features a measuring depth of 140 mm, enabling access to deeper bores and recesses common in mid‑sized components. Robust construction and ergonomic control elements make it suitable for regular shop‑floor use where a balance of stiffness and manageability matters; the design supports straightforward positioning within fixtures and measurement jigs.

Delivery scope, integration and workshop fit

The micrometer is supplied without an adjustment ring, permitting flexible alignment with existing workshop standards and calibration routines. With a clear specification for data output and display behaviour, the instrument integrates into conventional inspection stations or handheld sampling procedures. Classification within the Standard range (measuring range up to 300 mm) positions this tool as a universal choice for machine‑building and metalworking shops that require a practical compromise between reach, stiffness and single‑operator handling.

Contact Metav Werkzeuge for a tailored recommendation on using the M312.260 in production inspection or to arrange a technical consultation at our Emmerich office

Technical data

• Article number: M312.260
• GTIN: 4054469120027
• Tariff number: 90173000
• Manufacturer: Metav IndustryLine

Core data

• Measuring range: 200–225 mm
• Measuring depth: 140 mm
• Resolution (reading): 0.001 mm
• Accuracy: 0.008 mm
• Weight: 4.8 kg

Special features

• Digital display with ON/0, mm/inch, ABS, PRESET, HOLD
• Data output: RB 4
• Hardened measuring faces
• Three‑point internal measurement geometry
• Supplied without setting ring

FAQ

What accuracy can be expected from this internal micrometer?
The M312.260 (three‑point internal micrometer, Metav IndustryLine) is specified with an accuracy of 0.008 mm, offering reliable repeatability for workshop inspection of medium‑sized bores.

Does the instrument provide digital data transfer for SPC?
Yes, the device includes an RB 4 data output for sending measured values to inspection software or data loggers, enabling streamlined statistical process control.

Are the measuring faces suitable for frequent use?
The measuring faces are hardened, which increases wear resistance and helps maintain measurement integrity during repeated shop‑floor use.

Is an adjustment or setting ring included in delivery?
No adjustment ring is supplied with the instrument; the scope of delivery intentionally omits the setting ring to allow adaptation to existing shop standards.

For which applications is this measuring range intended?
The 200–225 mm range places the instrument in the Standard category, appropriate for machine‑building, fixture inspection and medium‑sized component bore measurement.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com