This is the easy way to grind piston rings quickly and accurately. Simply take your ring, secure it to the smooth-motion fixture, set the micrometer, and start grinding. Always better to grind less than more until you're comfortable with how the grinder works. Powered by a 6 volt, rechargeable battery. Offers maximum speed and affordability. Comes with two (2) 120-grit grinding wheels (p/n 66762) and battery charging cord. Portable or can be bench mounted.
If you'd like a replacement rechargeable battery for your ring filer, please search part number 91-BAT at Summit Racing or JEGS.