Bosch HB400 Bi-Metal Hole Saw, 4" Consumer Sockets & Holders sold separately) or 200 all-purpose

sold separately) or 200 all-purpose wipers (GPC 445

Anti-stick coating reduces friction and gum-up during operation

11-1/2" cast handle

Penetrates right through rust to bare metal

brad nailing

Bosch HB400 Bi-Metal Hole Saw, 4" Consumer Sockets & Holders sold separately) or 200 all-purpose''POWER CHANGE'' HOLE SAW Power Change hole saw system has a quick change arbor that quickly removes holesaws from mandrel. Use for cutting in aluminum, brass, bronze, copper, plastic, stainless steel, wood, and other compositions. Bi metal hole saw cuts material up to 1 5 8" deep. Will cut through a 2x4. Easy plug removal. Hex Shank Carded Hole Diameter : 4"