Set consisting of 11 Bosch Pro multi material holesaws. Lasts up to 2x longer than a standard Bosch holesaw in tough materials. An enhanced tooth design enables fast and smooth cuts while high-cobalt HSS alloy teeth deliver longevity. Slotted barrel aids removal of debris. Cuts wood, drywall, plastics, metal, non-ferrous metal and stainless steel. Supplied with Powerchange quick change arbor and pilot drill bits. Cuts Non-Ferrous Metal, Thin Sheet Metal, Wood & Plastic Steel Slotted Barrel to Aid Removal of Debris 20mm - 76mm Dia. Holesaws For Use with 3-Jaw Chuck Machines on Rotary Action Cuts Non-Ferrous Metal, Thin Sheet Metal, Wood & Plastic Steel Slotted Barrel to Aid Removal of Debris 20mm - 76mm Dia. Holesaws For Use with 3-Jaw Chuck Machines on Rotary Action