General description Small size and lightweight, this 10W Hobby Craft Mini Drill Grinder Rotary Tool Set is designed with a comfort grip handle for better control during drilling. It features 3 adjustable speeds ranging from 5000 to 15000 r/min, allowing you to change the speed according to the material being worked on. This versatile tool is great for cutting, engraving, milling, grinding, polishing, removing, and drilling various materials. Technical specifications Power Source: Battery Rated Input Power: 10W Non-Load Speed: 5000-15000 r/min Output Voltage: 3.7V / 10A Charge Voltage: 5V DC (USB) Idling Time: 2 hours Grinding Work Time: 1 hour maximum Collect Chuck Diameter: 0.5-3.2mm Weight: 183g Material: ABS Available Colors: Red / Grey / Green Electric Drill Bit Collet Sizes: 0.5mm, 1.0mm, 1.5mm, 2.4mm, 3.0mm, 3.2mm Package Contents 1 x Electric Drill 1 x USB Wire 1 x Clamp Mandrel 1 x Rubber Wheel 1 x Tapping Rod 1 x Circular Saw Blade 2 x Diamond Grinding Needle 2 x Wool