This is the ultimate tool for precision piston ring grinding and the finest Power Ring Filer available on the market today. The Total Seal Power Ring Filer is extremely accurate and includes an integrated dial indicator for precise read out. It features an exceptionally smooth high output 1/15 HP ball bearing motor that operates at 3000 RPM. Included with the Filer is a 3” x 1/8” grinding wheel, 2-1/2” x 1/2” de burring wheel and a diamond wheel dresser. There are two models available: 110V (Part No. PRF-812DW) and 220V (Part No. PRF-822DW). The Total Seal Power Ring Filer is a “must have” tool for serious engine builders and will make ring filing a super accurate and simple process.