Piston Ring Filer, Electric, 12 V Battery, Rechargeable, Charger Included, 2-Grinding Wheels, 120-Grit, Kit

The accurate way to proper piston ring end-gap.

These Proform electric piston ring filers file piston rings for proper end-gap. They are powered by a rechargeable 12 V battery and come with two 120-grit grinding wheels and a battery charger.