Cuts stainless steel sheeting, mild steel sheeting, trunking, thin plastics and thin non-metallics. Heat-resistant high speed steel edge with alloy backing and constant pitch 8tpi. Safety stop at the base of the holesaw prevents saw to travel beyond the holesaw depth. Cuts Stainless Steel, Tool Steel, Mild Steel Sheet, Thin Wood & Thin Plastic 43.2mm Arbor Length 24.3mm Pilot Drill 1/4" Hex Shank Steel Slotted Barrel to Aid Removal of Debris For 1/2" Chucks - Use with Pilot Drill Specifically Designed for Cordless Power Tools Cuts Stainless Steel, Tool Steel, Mild Steel Sheet, Thin Wood & Thin Plastic 43.2mm Arbor Length 24.3mm Pilot Drill 1/4" Hex Shank Steel Slotted Barrel to Aid Removal of Debris For 1/2" Chucks - Use with Pilot Drill Specifically Designed for Cordless Power Tools