Includes popular sizes: 21, 25, 29, 38, 44, 51 and 64mm holesaws, pilot drill, 2 arbors and hex key. Max speed 1500rpm. Includes popular sizes: 21, 25, 29, 38, 44, 51 and 64mm holesaws, pilot drill, 2 arbors and hex key. Max speed 1500rpm.