Accurately measure seatposts, head tubes, bearings and spoke diameters with the Park Tool DC-1 digital caliper. It's a precision instrument built with stainless steel and rugged ABS composite.
Features
Displays metric, decimal inches and fractional inches to 1/128
Large LCD display makes measurements easy to read
Measures external, internal, depth and stepped dimensions
Includes a protective case and battery; uses battery model SR44