H355 Hacksaw Blades Cobalt Carded Sutton Tools Heavy Duty Bi-Metal Cobalt Hacksaw Blades are shatterproof, with superior cutting power & flexibility. The Cobalt material give these blades exceptional life for tougher applications such as stainless steel. 18 TPI: For 6-25mm materials eg pipe, angle iron & steel bar. 24 TPI: For 3-6mm materials eg conduit, heavy sheet metal & tubing. 32 TPI: For <3mm materials eg thin sheet metal & metal trim. All Sutton Tools hacksaw blades have 300mm hole centres to fit all standard size hacksaw frames. Colour coded and clear markings for easy identification 300mm pin hole centres fit all standard hacksaw frames Made from Bi-Metal Cobalt HSS. Premium quality for toughness and longer life