Park Tool DCA-1 Digital Caliper Accessory Measuring Device, Caliper Accessory, Clear

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The DCA-1 installs onto most digital, dial, or vernier calipers and features protruding contact points that allow measurement of the center of the braking surface rather than the u nworn edge of the rotor for a more accurate measurement The conical end points of the DCA-1 can be used to measure center-to-center distances of bolt holes for calculating bolt circle diameter (BCD) of chainrings and cranks Product Specs Color: Clear Model: DCA-1 Tool Type: Caliper Accessory Show more