Small size and light weight, designed with comfort grip handle for better control during drilling.3 speeds adjustable in the range of 5000-15000 r/min, on button press to change according to the material.Great for cutting, engraving, milling, grinding, polishing, removing and drilling.Applicable material: metal, wood, plastic, modeling clay, jewelry, aluminum, etc.Power Source: Battery Chuck Diameter : 0.5-3.2mmRated Input Power : 10WNon-Load Speed : 5000-15000 r/minIdling Time: 2 hoursGrinding Work Time: 1 hour maximum : Woodworking/Polishing/ EngravingOutput Voltage : 3.7V / 10ACharge Voltage : 5V DC (USB)Weight: 183gcolour:GreyMaterial:ABSsize:Electric Drill Bit Collet: 0.5mm, 1.0mm, 1.5mm, 2.4mm, 3.0mm, 3.2mmPackage Contents:1 x Electric Drill1 x USB Wire1 x Clamp Mandrel1 x 1 x Tapping Rod1 x Circular Saw Blade2 x Diamond Grinding Needle2 x Polishing Wheel3 x Sandpaper Circle3 x Twist Drill Bits5 x Wheel Grinding Head6 x Electric Drill Bit Collet1 x Storage BoxOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.