The Makita 1-9/16 in. Rotary Hammer with Anti-Vibration Technology (AVT) features a powerful 11-Amp motor that delivers 9.5 joules of impact energy and 1,350 - 2,750 BPM to handle demanding jobs. This dual-purpose rotary hammer has a soft-start electronic switch that helps suppress start-up reactions to offer smooth starts and constant speed control. The HR4010C also features L.E.D. light indicators and a 360-degree swiveling side grip that adjusts to 8 positions for handling ease.