00º Sioux-Style Cool Blue Valve Seat Stones

Brass bushing to resist galling or seizing to the holder Heat-cured, permanent epoxy bonding prevents loose bushings Bushings are deep set to expose the most abrasive for long life Each wheel is pre-trued and checked to assure accurate, vibration-free grinding Cool Blue stone is a superior general purpose seat grinding stones for high performance beryllium seats, that cuts faster than our standard general purpose stone Ideal for tractors and trucks with diesel engines 11/16" x 16 thread Available from 1-1/4" to 2-5/8" diameters - select sizes below