25mm Digital Groove Measuring Micrometer With Ratchet, 0.001mm Resolution, Transport Case - Metav IndustryLine

Take advantage of the combination of compact design, high resolution and workshop-ready functions to measure grooves with confidence; order directly via Metav Werkzeuge or consult our specialists for application advice.

M302.121.C Digital Groove Micrometer – 0–25 mm, 0.001 mm resolution (Metav IndustryLine)

The M302.121.C is a digital micrometer engineered for precise groove and slot measurement in fine mechanical and industrial workshops, offering a compact form and clear digital readout for repeatable results.

• Digital display with ON/OFF, ABS/INC, UNIT, SET
• 0–25 mm measuring range, 0.001 mm resolution
• Ratchet stop and non-rotating spindle
• RB 4.1 data output for digital integration

Precision for confined grooves and slots

The instrument delivers 0–25 mm range with a fine 0.001 mm resolution and an indicated accuracy of ±0.005 mm, making it suitable where small tolerances matter. Its compact frame classifies it in the Micro group (measuring range up to 10–100 mm), which is optimised for fine mechanical tasks and small workpieces. The small anvil faces (approx. 0.75 × 6.5 mm) concentrate contact force, helping to keep readings repeatable when measuring narrow slots or grooves.

Consistent measurement workflow and user convenience

A built-in ratchet stop and a non-rotating spindle maintain constant measuring force and prevent spindle rotation from disturbing the measured surface, which reduces operator-induced variation. The digital module provides ON/OFF, ABS/INC, UNIT and SET functions so results can be read in the preferred unit and zeroed quickly. The device's spindle pitch of 0.5 mm supports fine, predictable adjustment during incremental measurements.

Integration-ready and traceable readouts

With an RB 4.1 data output, recorded values can be transmitted to inspection software or a data logger for process documentation and traceability. This facilitates integration into standardised quality procedures and makes the micrometer a practical choice for production environments that demand documented measurement records. The digital signal and clear display reduce transcription errors and speed up routine checks.

Built for workshop environments

Mechanical robustness and a user-focused layout suit daily use on the shop floor. The compact frame allows single-handed handling while the small measuring faces reach into narrow features; these design choices promote both accessibility and stiffness where space is limited. The product is intended for machine shops, toolrooms and inspection benches that require a reliable, compact solution for groove measurements.

Contact Metav Werkzeuge for tailored advice on integrating the Metav IndustryLine M302.121.C into production inspection routines and ensure exact groove measurements for your projects.

Technical Data

• Article number: M302.121.C
• GTIN: 4054469114668
• Category: Micrometers / Measuring screws
• Range: 0–25 mm
• Resolution: 0.001 mm
• Accuracy: ±0.005 mm
• Spindle pitch: 0.5 mm
• Measuring faces: 0.75 × 6.5 mm
• Data output: RB 4.1
• Display functions: ON/OFF, ABS/INC, UNIT, SET
• Frame class: Micro (measuring range up to 10–100 mm)

Facts

• Measuring range: 0–25 mm
• Resolution/readout: 0.001 mm
• Indicated accuracy: 0.005 mm
• Spindle pitch: 0.5 mm
• Measuring face dimensions: 0.75 × 6.5 mm

Special features

• Digital micrometer for groove/slot measurement
• Ratchet stop for constant measuring force
• Non-rotating spindle to protect the workpiece surface
• RB 4.1 digital data interface for traceable output
• Compact, stiff frame suited to confined measurements

FAQ

How fine is the resolution and what accuracy can be expected?
The M302.121.C offers a 0.001 mm resolution with an indicated accuracy of ±0.005 mm, suitable for workshop-level precision in groove measurements.

Can measurement data be exported to inspection software?
Yes, the micrometer provides an RB 4.1 data output for digital transfer to compatible data loggers or inspection systems.

Is the spindle protected against rotation when measuring narrow slots?
The device uses a non-rotating spindle, which prevents the spindle from turning and reduces the risk of surface damage in narrow grooves.

Does the instrument control measuring force to improve repeatability?
A ratchet stop supplies a consistent measuring force, helping to reduce operator-introduced variation and improve repeatability.

What type of measuring tasks is this micrometer best suited for?
This micrometer is optimised for grooves and slots within its 0–25 mm range and falls into the Micro class for compact, fine‑mechanical measurement tasks.

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