Cordless Rotary Tool Kit, Battery Included, Voltage 7.2, Collet Capacity 1/8 In., 5000 to 25,000 No Load RPM, Cordless Tool Battery Type Li-Ion, Battery Capacity 3.8Ah, Battery Included Yes, Switch Type On/Off at Front of Tool, Variable Speed Dial, Tool Weight 0.5 lb., Tool Length 4-1/2 In., Handle Design Soft Grip Pistol Grip, Features Patented Nose Tip Control