HSS Bi metal hole saws: 22mm (7/8"), 29mm (1 1/8"), 35mm (1 3/8"), 44mm (1 3/4"), 51mm (2") & 64mm (2 1/2"), 1 x large mandrel/arbour, 1 x small mandrel/arbour, I x adaptor, 1 x blow moulded plastic case 220 x 160mm. This kit is customised to include the tools that professional plumbers might need to use. Each saw features premium cutting edges that deliver clean, fast cuts through a variety of thick materials.