Scope of delivery5 hole saws 51, 57, 73, 76 and 83 mm 1 HSS drill bit 2 "Drill & Drop" adaptersProFit Bimetal hole saws with variable teeth. All hole saw dimensions have a cutting depth of 38 mm.Applications: Sheet metal; stainless steel, bronze, brass, copper, zinc, aluminium, wood and plastic. Recommended machine speeds, see accompanying instructions.