Extension Gasket Cutters - Gasket Cutter Kit (Metric) - No. 2, 3917/16582" Cut DiameterCuts 6 mm to 635 mm in diameter Hefty brass cutting head slides easily over a variety of gasket materials Modular extension design allows you to quickly adjust your cutting size Special cutting blades are held securely, ensuring consistent and repetitive cuts in material up to 3 4" thick Choose from 10 convenient kits to accommodate your cutting requirements ; PARTS INCLUDED: Cutter block & head assembly; 19 mm long centre pin; Cutter head screws (2);