Caliper BAHCO 135100 — model 1500M OPA, precision measuring tool

BAHCO caliper model 1500M OPA is a precision measuring tool for linear measurement tasks. Designed for inside, outside and depth measurements, this caliper provides clear scale reading and stable jaw alignment to deliver repeatable results in metalworking, maintenance and quality control environments. The instrument is intended for workshop and mechanical use where accurate dimensional control is required.

Advantages

The caliper offers straightforward operation with a readable scale and stable sliding mechanism that minimises play during measurement. Its versatile jaw geometry allows taking inside, outside and depth measurements without changing tools. The robust construction supports regular workshop use and ensures measurement repeatability over time.

Suitable for

• Measuring external diameters and widths of machined parts
• Checking internal diameters of bores and slots
• Depth measurement of steps, recesses and holes
• Routine inspection in maintenance and quality control
• Dimensional verification in metalworking and mechanical assembly

Key specifications

• Measurement functions: outside, inside and depth measurements
• Type: manual sliding caliper with scale reading
• Construction: rigid jaws with stable alignment
• Scale readability: clear graduations for precise reading
• Intended use environment: workshop, maintenance, quality control

How to use

Position the caliper jaws around or inside the feature to be measured and slide the movable jaw until it contacts the workpiece without excessive force. For depth measurements extend the depth rod and place the caliper body on the reference surface, then slide until the rod contacts the measurement point. Read the value from the scale while keeping the caliper steady and perpendicular to the measured surface. Clean contact surfaces and zero the scale (if applicable) before critical measurements to reduce error.

Usage recommendations

Store the caliper in a dry, dust-free place and protect it from impacts. Wipe measuring faces clean before and after use and avoid exposing the instrument to cutting fluids or corrosive agents. For best results use gentle, consistent contact pressure and verify calibration periodically when used for quality control tasks.