These stainless steel digital calipers measure inside diameter, outside diameter, and depth. Easily switch from inches to millimetres with the touch of a button. Fine-adjustment thumb roller improves reading speed and position-holding lock screw sets length. An individually-numbered Traceable® Certificate is provided with each unit, that assures accuracy from an ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognised national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement.

• Versatility and accuracy in a compact design
• Durable stainless steel construction
• Includes NIST-Traceable certificate from A2LA accredited (1750.01) calibration laboratory