We have Makita HR2475X2 1-Inch Rotary Hammer includes free GA4530 4-1/2-Inch Grinder with Product Detail Powerful 7 AMP motor; 0 - 1,100 RPM & 0 - 4,500 BPM for demanding applications 3-mode operation: ?rotation ony? ,?hammering with rotation? or "hammering only" for multiple applications 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 . The "Makita HR2475X2 1-Inch Rotary Hammer includes free GA4530 4-1/2-Inch Grinder" is best product for you. We recommended Makita HR2475X2 1-Inch Rotary Hammer includes free GA4530 4-1/2-Inch Grinder