This durable Progressor Holesaw Set is designed for the toughest demands The Bosch 2608584667 is a 14 Piece Holesaw Set designed for cutting wood and metal. These hole saws are made from HSS bi-metal with 8% cobalt alloy for extreme resilience and long working life. The set includes 11 hole saws ranging in sizes from 19mm to 76mm, a power change adapter, 2 x HSS-G pilot drill bits and a hard plastic carry case. Features: 14 piece hole saw set designed for the toughest demands Quickly and steadily through a wide variety of materials Designed to cut metal, mild steel, aluminium, plastic and plasterboard Progressive tooth strip for high cutting performance and fast chip clearance Power change adaptor for fast and safe attachment and release of the pilot drill bit and hole saw with just one click Contains diameters: 19, 22, 25, 29, 35, 38, 44, 51, 57, 64, 76 mm Note: the cutting quality depends on the correct speed and the coolant used Comes with: 11 Holesaws 1 x Power Change adapter 2 x HSS-G pilot drill bit Kit box Specification: Pack Qty: 14 piece