-speed gear-box Suitable for light chiselling work (12 settings) Percussion stop for drilling only operations Rotation stop Aluminium die-cast gear housing Reversing facility Metabo slip clutch Auto-stop carbon brushes Winding protection grid Electronic speed stabilizer Varaible speed controlled by adjusting dial Winding temperature monitor Quick-change chuck system Technical Specifications Single blow energy 0-2.4 joules Maximum Tightening Torque 195 inch lbs. Capacity- in concrete 1 1/8"- in brickwork using thin wall core bits 3 1/8" - in mild steel 5/8"-5/16"- in softwood 1 9/16"- 3/4" No-load speed (RPM) 0-950/0-2600 No-load blows per minute (BPM) 0-4400 Amps 8.0 Rated input watts 1010