Park Tool, DCA-1, Digital Caliper Accessory

Description

* Installs onto most digital, dial, or vernier calipers (including the Park Tool DC-1) * Features protruding contact points that allow measurement of the center of the braking surface, bypassing the unworn edge to ensure an accurate measurement* Conical end points can be used to measure center-to-center distances of bolt holes for calculating bolt circle diameter (BCD) of chainrings and cranks