121mm Diameter (4.3/4") Bi-Metal Holesaw

Featuring a constant pitch - first choice for cutting thin sheet materials up to 3mm thick. For producing high quality holes in wood, steel, brass, bronze, cast iron, aluminium and plastic. Featuring an hardened HSS cutting edge welded to a tough alloy steel body. Heavy duty shatter-resistant construction; virtually unbreakable. 6 teeth per inch.38mm (11/2”) cutting depth.