详情 • With three easy-to-set cutter wheels for quick cleaning of grooves. • Sharp steel cutter removes carbon and vanishes from piston ring grooves. • Size: Blade 1: 1/16”, 5/64”, 3/32”, 1/8”, 5/32”, 3/16”. Blade 2: 2, 2.5, 3, 4, 4.5mm & 1/4”. Blade 3: 1.2, 1.5, 1.8, 2.8, 5, 5.5mm.