Proform 66786 Replacement Grinding Wheel for 66785 Manual Piston Ring Filer

Proform 66786 Replacement 120-Grit Replacement Wheel for Proform  (66785)Manual Piston Ring Filer

Part# 66786 (replacement grind wheel only)

To assure proper piston ring end-gap, the piston ring filer enables the user to file piston rings quickly and accurately. Position the piston ring firmly against the dowel pins, crank the handle to turn the abrasive wheel. Using a feeler gauge, file the piston ring to meet the manufacturer's specification.