Built-in L.E.D. light illuminates drilling surface and increases visibility. RELIABIILIITY Built-in torque limiter ensures stable torque control. COMFORT - Vibration absorbing handle provides greater comfort for the end-user VERSATIILIITY - 3 Modes: Rotation only, Hammering with Rotation & Hammering Only makes this hammer versatile makitatools.com L.E.D. LIGHT ILLUMINATES DRILLING SURFACE 3-Mode Operation: Rotation Only, Hammering with Rotation & Hammering Only. Powerful, Compact, Ergonomic Design with Padded grip and Side Handle for Increased Operator Comfort. Extended Service Life of Carbon Brushes No Hammering when Idling Function Ensures Extra-low Vibration Under No Load. 0 - 1,100 RPM; 0 - 4,500 BPM for Demanding Applications. This model comes a 4 1/2 inch grinder as a 'value added.