Specifications: Voltage:220-240V~50/60Hz Input power:800W No-load speed:0-1100rpm Impact rate:0-4000bpm Impact energy:2.5J Max.drilling capacity: Concrete:26mm Steel:13mm Wood:30mm SDS plus chuck system With 3 drills and 2 chisels With 1set extra carbon brushes With 1pcs keyless quick-change chuck Packed by BMC