Caliper Topex 31C616 — 200 mm measuring jaw with 0.05 mm resolution

The Topex 31C616 caliper is a 200 mm precision measuring tool with a 0.05 mm resolution intended for linear measurements in workshop, hobby and maintenance environments. It measures external dimensions, internal diameters and depths with a sliding jaw mechanism and clear scale graduations. Compact and lightweight, the caliper is suitable for routine dimensional checks on metal, wood and other materials where straightforward, reliable readings are required.

Advantages

The caliper offers a fine 0.05 mm resolution for more precise readings than standard 0.1 mm scales, enabling tighter tolerance checks. Its 200 mm measuring jaw provides a practical measuring range for common workshop tasks while keeping the tool compact and easy to handle. The simple mechanical design requires no batteries and is less sensitive to electronic faults or moisture, making it durable for general use. Graduated scale markings are easy to read and the jaws are shaped to measure external and internal features as well as depth.

Suitable for

• Measuring external dimensions of machined parts and workpieces
• Checking internal diameters of holes and bores
• Measuring depths of slots, recesses and holes
• Workshop quality control and routine maintenance checks
• Hobby and DIY projects in metalworking and woodworking

Key specifications

• Measuring range: 0–200 mm
• Resolution: 0.05 mm
• Measurement functions: external, internal and depth
• Scale type: graduated vernier scale
• Construction: compact, lightweight sliding-jaw caliper

How to use

Align the caliper jaws around or inside the object to be measured and slide the movable jaw until it contacts the workpiece without applying excessive force. Read the main scale and vernier scale to obtain the measurement with 0.05 mm resolution. For depth measurements, extend the depth rod into the feature and read the combined scales in the same way. Keep contact surfaces clean and free of debris to avoid measurement errors. Store the caliper in a protective sleeve or box when not in use to preserve the scale markings and sliding smoothness.

Usage recommendations

Use gentle, consistent pressure when closing the jaws to prevent wear and maintain accuracy. Verify calibration periodically against gauge blocks or a reference standard if high-precision checks are required. Avoid using the caliper on hot parts or immediately after cutting operations where swarf may interfere with the slide action.