Performance Engine Piston Ring Filer Grinder 66785 Grinding None Raw AluminumItems Description Replace: 66785 66786 Top Quality: The piston ring filer are made from high-quality aluminum, and it is durable and long - lasting to use Function: To assure proper piston ring end-gap, the piston ring filer enables the user to file piston rings quickly and accurately How to use: Fix the piston ring on the pin, shake the handle and file the piston ring with grinding wheel to ensure the correct clearance of the piston ring Package Included: 1 * piston ring filer, 2* Grinding wheel Note: When grinding the product, with the flat side of the piston ring facing down（must）, manually turn the rocker to make it grind toward the inner side of the piston, because the grinding wheel will grind toward the outer side of the ring, which is not what you want, because it leaves burrs. Payment InformationWe will only accept PayPal payment. Please pay using PayPal ONLY within 7 days from the date of transaction be made. Secured credit card payment through PayPal.Return PolicyWe offer 1 year warranty, if you meet quality problem, return and refund is acceptable.We offer not less than 30 days for return and refund policies, please let us know and provide the photos or video, we will resend it or refund you.But we reject the return if the item damaged by the buyer’s operational errors.Buyer pay the return shipping cost.Contact UsAny problems or concerns, please contact us at first, we believe that communication and discussion is the best way to solve it. If you are happy with the transaction with us, leaving us an ALL-5-STAR positive feedback would be greatly appreciated. Tell your friends when you are satisfied and DO tell us when you are not ! Your encouragement will keep us moving forward.