Features: Mini Electric Drill Handheld Drill Bits Set. Epoxy Resin Jewelry Making Wood Craft Tools 5V USB Plug Screwdriver Tool Set. This small electric drill uses 5V for direct current, 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 stick, 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. Specifications: Power supply voltage: 5V-6V Current: Recommended to be above 2A Handle structure: straight Drill clamping method: Drill chucks No-load speed: 11000 (rpm) Size:Approx. 9x 3.5cm/3.54x1.37inches Chucks diameter: 1.1mm Drills Diamter:0.8mm, 1.0mm, 1.2mm, Brass collet capacity: Small Chucks 0.7-1.2mm Large Chucks 2.5-3.2mm Operating Line:1.8 Meter Package Includes: 1pc Electric hand drill, 1pc Wrench, 3pcs Drills(0.8mm, 1.0mm, 1.2mm,) note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!