Impact Drill for Drilling Wood,Metal and Concrete Impact Drill1.No-load speed:1,000/3,000rpm2.Impact rate:16,000/48,000rpm3.Input power:70w4.Maximun Drilling Capacity: Steel:13/8mm Concrete:20/13mm Wood:40/25mm5.Gross weight:2.1kg6.Maximun chuck diameter:13mm Impact Drill for Drilling Wood,Metal and Concrete