Feature: Upgraded HandleOur rotary hammer drill with Upgraded Handle, Anti slip handle and additional handle keep you from getting fatigued or exhausted even work for a long time; 850W Pure Copper Motor Produce 0-3000 RPM variable speed to meet different requirements. Great tool for drilling in steel, concrete and other hard materials; Lock Speed Button & 2M CableLock button enable you to lock the speed without a constant grip on the trigger to reduce fatigue. 2M extended cable increase convenience for projects that requires prolonged periods of work time in a bit of extra mobility; 2 in 1 FunctionOur electric rotary hammer drill with hammer and drilling function. just switch the function selector to easily convert hammer and drilling, widely apply to wood, masonry, concrete and steel; Package Included1 x 850W Hammer Drill, 1x Additional Handle, 1x5mm drill, 1x6mm drill, 1x8mm drill, 1x depth gauge. Hammer Drill Function 1850W powerful motor , Drill through wood, plastic, concrete and metal with a no load speed of 0-3000 rpm. 2 Soft grip for comfortable operation. 3 Variable speed to suit different requirements in different applications. 4 Optional forward and reverse switch for convenient operation. 5 360 degree rotary auxiliary handle. 6 Depth ruler, accurate measurement of hole depth. 7 Quality 1.5-13mm chuck,solid and durable,never falling. 8 Drill and hammer drills are free to switch between two function, convenient and quick. Specification: Voltage: 220V-240V/50Hz Input power: 850W No-load speed: 0-3000 rpm Chuck range:13mm Drilling diameter: wood/concrete/steel:25/13/10mm Package list: 1x Hammer drill 1x side handle 1x depth gauge 2x Carbon brush 1x Chuck key 1x Manual 3x Concrete bit 5/6/8mm