The HR3210C with AVT® is engineered with an 8.2 AMP motor that provides plenty of power, with a no load speed of 315 to 630 RPM and 1,650 to 3,300 BPM. The synchronized RPM and BPM prevent overlapping impacts for up to 50% more efficient drilling. The hammer features 3-mode operation: “rotation only,” “hammering with rotation” and “hammering only,” with a built-in torque limiter that ensures stable torque control and disengages the motor should the bit bind or hit reinforcements. In addition, the electronic speed control reduces speed loss when working in heavy applications to ensure maximum productivity.