Product Features: SDS-PLUS, Light-weight, Hammer drill, Electric pick, Electric drill, COMPACT STRUCTURE, DIY, Industrial, Impact drilll, Concrete 800W powerful motor adapt to difficult operation One knob with 3 functions, Drilling/ Hammer drilling/ Hammering, improve working efficiency SDS clamping design,quick and convenient clamping. Electronics stepless speed regulation switch, adjust the speed according to the demand Forward / reverse button, forward / backward freely Efficient and smart air cooling system, efficiently extend the life of the motor. The overload clutch provides effective protection for users when bit binds Accurate depth gauge, accurately control the drilling depth for blind holes, making operation more precise. Antiskid soft handle, comfortable to use 360°rotatable auxiliary handle, meet different needs flexibly Accessory: Auxiliary Handle Depth Gauge SDS-Plus Drill Bits (optional) SDS-Plus Chisels (optional) Chuck (optional) Adaptor (optional)