Precise Groove-Master 3 PIECE SET, SIZE 1,2,3 - 29500
Quick & Accurate! Measure Internal And External Diameters of Retaining Ring Grooves, O-Ring Grooves & Undercuts.
Machined from steel and hard chrome plated.
Fits all 6" Calipers with maximum jaw thickness of .140".
Measure internal grooves from .200" up to the capacity of the caliper.
Precise Groove-Master