Bosch Expert holesaw set delivers durability and long life in tough applications. Built with Bosch Carbide Technology, each tooth is laser-welded and ground 6 times for strength and precision. Special slot design improves visibility and enables fast plug ejection. Suitable for trade work such as tubing for electrician's wires, plumber's fresh and wastewater pipes, holes for sockets, light switches and junction boxes. For use with the Bosch PowerChange Plus keyless arbor and 105mm pilot drill bit. Also includes pilot drill bits for use in brick, soft tiles, wood, drywall, plastics and metal. Cuts Wood with Metal, Brick, Soft Tiles, Stainless Steel Sheets & Plastics Steel Slotted Barrel to Aid Removal of Debris 20mm - 76mm Dia. Holesaws For Use with 3-Jaw Chuck Machines on Rotary Action Bosch Carbide Technology Quick Changes Cuts Wood with Metal, Brick, Soft Tiles, Stainless Steel Sheets & Plastics Steel Slotted Barrel to Aid Removal of Debris 20mm - 76mm Dia. Holesaws For Use with 3-...