Park Tool DC-1 Digital Caliper. Accurately measures seat posts head tubes bearings spoke diameters and more. The Park Tool DC-1 Digital Caliper is a precision instrument built with stainless steel mechanisms and a rugged ABS composite body. The tool’s ability to measure in metric decimal inch and fractional inch make it an indispensable shop tool.

Displays metric decimal inch and fractional inch to 1/128"

Large LCD display is easy to read

Measures external internal depth and stepped dimensions

Protective case and battery included

Accuracy: +/- 0.02mm/0.001 (-100mm)

Repeatability: +/- 0.01mm/0.0005"

DC-1 uses battery model SR44