Special tool with three easy to set cutter wheels for quick cleaning of grooves>p> Sharp steel cutter removes carbon vanishes from piston ring grooves. Blade (piston ring ) sizes

(mm )1.2 - 1.5 - 1.8 - 2.0 - 2.5 - 2.8 - 3 - 4 - 4.5 - 5 - 5.5

(")5/32 - 1/8 - 3/32 - 5/64 - 1/16 - 3/16 - 1/4