MAKITA | SDS Plus 26mm Rotary Hammer | HR-2600Max in concrete (TCT bit): 26 mm Max in concrete (TCT core): 68 mm Max in concrete (Diamond core): 80 mm Max in wood: 32 mm Max in steel: 13 mm Impacts per minute: 0 4600 ipm The Makita HR2600 series models are 26mm (1") Hammers with a chuck adapted for SDS PLUS shank bits. Features compact and lightweight tool design, ergonomic handle and many other features designed for more comfort and better control. Double Insulation Variable speed With reversing