Makita HR2621X2 1-Inch Rotary Hammer SDS-Plus with Free GA4530 4-1/2-Inch Grinder (Discontinued by Manufacturer) Powerful 7-amp motor; 0 - 1,100 rpm and 0 - 4,500 bpm for demanding applications 3-mode operation: rotation only, hammering with rotation, or hammering only Ergonomic D-shaped handle with rubberized soft grip for increased comfort and control One-touch sliding chuck allows for quick bit changes Built-in torque limiter ensures stable torque control