The Accud 421 Series internal dial indicators utilize spring-loaded jaws to make constant point contact pressure to take highly accurate comparison measurements of hole diameters and groove and tube thicknesses. The dial display provides precise, readable measurements in metric or inches. It is mostly used in conjunction with an optional setting ring for accuracy.

Internal Digital Calipers are known for their ease of use, accuracy, and versatility. They are commonly used in manufacturing, machining, and inspection processes to ensure that components meet exact specifications. The calipers come in a variety of models with different ranges and resolutions, allowing users to select the right tool for their specific application.

Overall, Internal Digital Calipers are a reliable and essential tool for anyone who needs to measure the internal diameter of objects with precision and accuracy.

Graduation: 0.01mm

Range: 0mm – 20mm

Accuracy: ±0.04mm

Jaw Length: 60mm

Manufacturer Cat No: 421-020-11

ACCUD