Cordless Multifunctional Electric Hammer Impact Drill - 21V Brushless Motor Voltage:21V No-load speed:0-1400/min Impact rate:0-4700bpm Single impact force:1J Max drilling capacity:?22 in concrete Integrated work light SDS plus chuck system With 3pcs drills and 1pcs chisels  .One button with four function. – Easy to adjust depth gauge to set the drilling depth for blind holes. – This machine is intended for hammer drilling and chiseling in concrete, brick. – It is also suitable for drilling without impact in wood, metal, ceramic and plastic Specifications: – Rated Voltage: 21V – No-load Speed: 0-1400rpm – Impact Rate: 0-4500bpm – Impact Energy: 1 J – Max Drilling Capacity: – Steel: 13mm – Wood: 28mm – Concrete: 22mm – Dust Protection Cap – Function Mode Selection Switch – ON/OFF Switch – Forward and Reverse Rotation Control Includes  1x Lithium-Ion Cordless Rotary Hammer 2x Lithium-Ion 21V Batteries 1x Lithium-Ion 21V Charger 1x Easy to adjust Handle 1x Steel Easy to adjust depth gauge