Milwuakee 10 Piece Contrator Bi-Metal Holesaw Set is optimsed variable 4/6 tooth geometry for cutting cutting and universal use. The Holesaws have Bi-Metal teeth for the best durability and increased wear resistance. The Holesaws can be used on material such as steel, non-ferrous metals, wood, drywall plasterboard and plastics. This set can be used with the Milwuakee M18 Brushless Percussion Drill. Features and Benefits • Bi-Metal Teeth • For Universal Use • Optimised Tooth Geometry For Faster Cutting • 10 Piece Set Contents • Bi-Metal Holesaws In Sizes: 25, 32, 40, 54, 68 and 76mm • Arbor for 14-30mm • Arbor for 32-152mm • 2x Pilot Drill Bits • 1 x Allen Key