Feature: This small electric drill uses 5V DC, which is safe. Most USB power adapters with 2A output can be used for power supply, Suitable for punching ordinary density plastics and wood, such as model airplanes, car models, bamboo boards, ice cream sticks, chopsticks, bird cages, animal tooth bones, shells, PCB circuit boards, booklets, resin toys, drop film accessories, pearls, acrylic The thickness of crystal, etc. should not exceed 8 mm. Type: Hand drill Power supply voltage: 5V Rated output power: 15 (W) Handle structure: straight Drill clamping method: Drill chuck No-load speed: 11000 (rpm) Rated speed: 12000 (rpm) Dimensions: 9x 3.5 (cm) Chuck diameter: 1.1 (mm) Drills Diamter:0.8mm, 1.0mm, 1.2mm, Brass collet capacity: Small Chuck 0.7-1.2mm Large Chuck 2.5-3.2mm Operating Line:1.8 Meter Usage For wooden, plastic, paper and resin products thickness within 8mm. Quantity:1 Set. Note: Light shooting 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. Package Includes: 1pc Electric hand drill 1pc Wrench 3pcs Drills(0.8mm, 1.0mm, 1.2mm,)