Portable Mini Electric Drill Handheld Drill Rotary Set USB Engraver Pen Drilling Jewelry Tools For Epoxy Resin Making DIY Wood Craft Features: 1. Please note: not applicable to heavy metals or high hardne materials. 2. Clamping range: 0.7-1.2mm quick change chuck makes drilling more convenient. 3. Adjustable electric drill: adjustable electric portable DIY handheld drill, durable and reliable. 4 Applications: Resin plastic wood polymer clay handheld drilling tools, jewelry making keychain pendant earrings, paper, sheet metal, acrylic, aluminum, etc. 5. Simple operation: ultra-long power cord design, 1.8m operation panel, fully meet the environmental requirements of DIY work, convenient switch, simple operation. Specifications: Material: ABS+ metal Rated speed: 8000rpm Power supply voltage: 5V No load speed: 8500rpm Rated output power: 10W Power supply voltage: 5-6V Power supply current: more than 2A Dimensions (L x W) : approx 115x25 mm /4.53x0.98 in Clamping range: small 0.7-1.2mm/0.03-0.05inch; Large 2.5-3.2mm/0.10-0.13inch Package 1: Small electric drill +3 twist drills +1 wrench +usb wire Package 2: Small electric drill +10 0.9mm+3 1.1mm (drill bits) +1 wrench +usb cable