• 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

Attributes