50-75 mm Bore Gauge With Friction Ratchet, Matt Chrome Measuring Drum, Case - Metav IndustryLine

Take advantage of the combination of precise mechanical control, a clear 0.01 mm scale and robust matte chrome finish for reliable external measurements in workshop and production environments. Order the micrometer directly via Metav Werkzeuge or ask the consultants for application support.

M304.230 Outside Micrometer 50–75 mm — friction ratchet, matt chrome-plated drum (Metav IndustryLine)

The M304.230 outside micrometer is a workshop instrument for precise external measurements in metalworking and quality control applications

• Friction ratchet for repeatable measuring
• Matte chrome-plated measuring drum
• Measuring range 50–75 mm, 0.01 mm scale

Repeatable precision that reduces rework

The instrument delivers repeatable results through a friction ratchet that standardises contact force and therefore reduces operator-induced variation. With a measuring range of 50–75 mm and an analog scale readable to 0.01 mm, the tool suits routine dimensional checks where consistent tolerances matter. The combination of a finely pitched spindle and the ratchet mechanism translates into smaller measurement scatter, supporting production processes that demand predictable outcomes and fewer rejected parts.

Clear mechanics for straightforward workshop use

Designed for practical use on the shop floor, the micrometer offers a matte chrome-plated measuring drum that reduces glare and improves scale legibility under task lighting. The spindle pitch 0.5 mm provides a tactile, incremental feel when adjusting, while the solid frame design keeps measuring faces parallel under light handling. Because the device is analog, there are no batteries or electronics to service, which simplifies routine inspection cycles and maintenance planning in a busy production environment.

Industry-standard compliance and durable construction

Manufactured to DIN 863, this outside micrometer follows established metrology norms for dimensional control and interchangeability in tool rooms and quality departments. The measuring drum and spindle materials are finished to withstand regular handling and to preserve scale clarity over time. For workshops seeking a balance of mechanical reliability and easy operation, this instrument offers a robust solution that integrates into existing inspection routines without additional infrastructure.

Choose the Metav IndustryLine M304.230 for durable, repeatable external measurement and contact Metav Werkzeuge in Emmerich for tailored advice at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: M304.230
• GTIN: 4054469116471
• Category: Messschrauben
• Standard: DIN 863

Numbers / Core technical data

• Measuring range: 50–75 mm
• Resolution / Reading: 0.01 mm
• Spindle pitch: 0.5 mm
• Measuring spindle diameter: 6.5 mm
• Analog instrument

Designs / Special features

• Friction ratchet for consistent contact force
• Matte chrome-plated measuring drum
• Mechanical micrometer frame for external measurements

FAQ

What measuring range does this micrometer cover?
The micrometer covers a measuring range of 50–75 mm, making it suitable for medium-sized external dimensions.

What is the scale resolution and how precise is the reading?
The device provides an analog reading with 0.01 mm resolution, enabling standard workshop precision for dimensional control.

Does the micrometer meet recognised standards?
Yes, the instrument is produced to DIN 863, aligning it with common metrology requirements for outside micrometers.

What feature ensures repeatable measurements across operators?
The built-in friction ratchet standardises contact force and helps achieve repeatable measurements in repetitive inspection tasks.

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