Bahco Electrician's Bi-Metal Holesaw Set, 10 PieceThe Bahco Electrician's Bi Metal Holesaw Set contains Sandflex Bi Metal holesaws, specially designed for metal cutting: ferrous metals (steel, stainless steel, cast iron) and non ferrous metals (aluminium, brass, copper). They can also be used in most materials such as wood and plastics. Bi metal construction with 8% cobalt for increased wear resistance. This 10 Piece Kit contains: 8 x Holesaws: 20, 25, 30, 35, 44, 51, 64 and 76mm 2 x Arbors