We have Makita HR4510C 1-3/4 inch AVT Rotary Hammer, SDS-MAX with Product Detail Makita's Anti-Vibration Technology incorporates a counterbalance system that reduces vibration for unmatched comfort Powerful 13.5 AMP motor; 1,250-2,750 BPM to handle the most demanding jobs Built-in Torque Limiter ensures stable torque control 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 HR4510C 1-3/4 inch AVT Rotary Hammer, SDS-MAX" is best product for you. We recommended Makita HR4510C 1-3/4 inch AVT Rotary Hammer, SDS-MAX