Dial Caliper Mitutoyo MDHC 18–150 mm, 0.01 mm resolution

The Mitutoyo MDHC dial caliper provides mechanical, battery-free linear measurement for external and internal dimensions within a measuring range of 18–150 mm and a resolution of 0.01 mm. The instrument combines a robust metal body with hardened measuring jaws and a vernier-style slider that positions the dial for repeatable, accurate size checks in workshop and inspection environments. The mechanical dial readout offers clear incremental indication without electronic components, making it suitable for situations where power-free, reliable measurement is required.

Advantages

The hardened measuring jaws resist wear and maintain accuracy over repeated use, while the vernier-style slider ensures stable jaw positioning during measurement. The 0.01 mm resolution and calibrated mechanical dial provide precise readings for fine tolerances. Designed for durability, the caliper's metal construction withstands shop conditions and reduces sensitivity to temperature and handling compared with more delicate electronic instruments.

Suitable for

• External dimension checks of machined parts and components
• Internal measurements where jaws can be inserted to measure bores or slots
• Workshop setup, in-process inspection, and quality control sampling
• Situations requiring battery-free, reliable measurement tools

Key specifications

• Measuring range: 18–150 mm
• Resolution: 0.01 mm
• Measurement types: external and internal
• Readout: mechanical dial
• Construction: metal body with hardened measuring jaws

How to use

Place the caliper jaws around or inside the feature to be measured and slide the vernier-style slider until the jaws make gentle contact with the workpiece. Read the value from the dial and main scale, noting the 0.01 mm increments indicated by the dial hand. For repeatable checks, ensure the slider is held steady and the jaws are aligned perpendicular to the measured surface. Store the caliper in a protective case when not in use and periodically inspect the jaws for wear.

Usage recommendations

Use light, consistent pressure when closing the jaws to avoid compressing the workpiece or distorting the measurement. Clean measuring surfaces of chips, oil or debris before taking readings, and allow the caliper to reach the ambient temperature of the workshop to reduce thermal measurement error.