• Clear dial reading for precise measurements
• Designed for measuring inside diameter, ring groove bottom diameter, and inside step diameter or holes
• Ergonomic handle for comfortable operation
• Includes protective fitted case

The KM-501 series precision inside caliper gauge features a mechanical dial indicator with spring-loaded arms for accurate inside dimension measurements. With an intuitive operation and measuring range from 15mm up to 515mm, this gauge offers reliable performance for various applications.

Manufactured with high-quality materials and precise processes, our inside caliper gauges deliver exceptional durability and stability. The robust construction ensures stable operation even in demanding work environments. The simple design facilitates easy calibration and maintenance, with periodic calibration recommended to maintain measurement accuracy.

• Protect from impacts, drops, or excessive force
• Avoid disassembling the gauge
• Do not press buttons with sharp objects
• Store away from direct sunlight and extreme temperatures
• Keep away from strong magnetic fields and high voltage
• Clean only with soft cloth - avoid organic solvents

Ideal for measuring inside dimensions across multiple industries including mechanical manufacturing, metal fabrication, automotive production, and aerospace applications.