Piston Ring Groove Cleaner Metric Standard 1/16 1/8 3/32 3/16 5/64 1/4 5/32 ring Comes with three easy-to-set cutter wheels for quick cleaning of groove Cleaner/Cutter Metric Sizes of 1.2mm, 1.5mm, 1.8mm, 2mm, 2.5mm, 2.8mm, 3mm, 4mm, 4.5mm, 5mm, 5.5mm Cleaner/Cutter Standard English Sizes of 1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 1/4" Handles pistons 2 3/4" to 5" diameter Adjustable Cut angle