Professional three-mode rotary hammer. An efficient combination hammer for SDS-Plus bits. Suitable for impact and unstressed drilling, plus chipping. 800 W output and speed can be adjusted between 0 and 1 100 min-? from a switch. Impact energy of 2, 8 J and optimal drilling range of 8 ? 20 mm in concrete. Max. Drilling capacity of 28 mm in concrete. TECHNICAL SPECIFICATIONS: Maximum Output Power 800 W, No load speed 0 – 1100 min-?, Impact 0 – 4500 min-?, Max. Drilling Diameter in Wood 32 mm, Max. Drilling Diameter in Concrete 28 mm, Max. Drilling Diameter in Steel 13 mm, Optimum Drilling Diameter Range in Concrete 8 – 20 mm, Impact Energy 2, 8 J, Power Supply Cord 2, 5 m, Side Grip yes, Depth Gauge (2) yes, Sound Power Level (LWA) 100 dB (A), Sound Pressure Level (LpA) 89 dB (A), Noise Uncertainty (K Factor) 3 dB (A). USER BENEFITS: Torque Limiting Clutch Engineered to Prevent Gear Damage, Recessed lock-on button for continuous operation, Depth gauge for increased drilling consistency, Torque limiting clutch engineered to minimize gear damage by automatically disengaging gears if the bit binds, Lock-on button for user convenience during longer work periods, Double insulated.