Electric Mini Drill USB Charging Handheld Resin Lightweight Engraving Pen Cordless Grinder Polishing Jewelry Making Craft Drilling Tool Features: Small size, light weight and easy to carry. Built-in battery, charged by USB cable, easy to use. The cylinder body is comfortable to hold. Mainly used for drilling wood, plastic board and cardboard (thickness within 10mm); Aluminum plate, circuit board (thickness within 10mm). Specification: Material: metal shell Clamping range: 0.7-1.2mm/0.02-0.04in Size: 131*24mm/5.15*0.94in Power supply voltage: 5V No-load speed: 9600rpm Rated output power: 10W Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.