We have Makita HR4010C 1-9/16 inch AVT Rotary Hammer, SDS-MAX with Product Detail Makita's Anti-Vibration Technology incorporates a counterbalance system that reduces vibration to only 4.5 m/s2 for unmatched comfort Powerful 11 AMP motor; efficient 1,350 - 2,750 BPM to tackle the most demanding jobs Preset variable speed dial with 5 settings to match the bit speed to the application L.E.D. power light indicates switch failure or cord breakage; L.E.D. service light indicates carbon brushes need to be replaced 1 year warranty . The "Makita HR4010C 1-9/16 inch AVT Rotary Hammer, SDS-MAX" is best product for you. We recommended Makita HR4010C 1-9/16 inch AVT Rotary Hammer, SDS-MAX