Electric Engraver Pen Set Grinding Machine Engraver Drill Machine Lettering Marking Machine Feature: 1. Comfortable Grip: The well-designed engraving pen lets you use it like a pencil for a comfortable hand, better control and precise engraving. 2. Reliable quality: high-strength metal and selected electronic parts are used, which are wear-resistant, wear-resistant and have a long service life. 3. Easy to use: The cordless engraving pen can work normally without a plug, eliminating the problem of wire confusion. 4. High Efficiency: This engraving pen can provide high speed of up to 5000-25000r/min, providing efficient engraving effect, three-speed adjustable, easier engraving. 5. Rechargeable engraving pen: The electric engraving pen is powered by lithium battery and can be recharged. No more disposable batteries 6. Battery indicator: 100% light in three bars, 70% in two bars, and a reminder at 30% in one bar. 7. Wide range of applications: It can be used to engrave metal, ceramics, wood, pebbles, plastics, etc. Perfect for DIY projects or craft use. Specification: Model: engraving pen Speed adjustment: three gears adjustable Speed: 5000-25000r/min Power supply mode: USB charging Voltage: 3.7V Power: 25W Type A: engraving pen*1, USB charging cable*1, diamond engraving needle*2, wrench*1 grinding needle kit*1 Size: 18*6*4.5cm Weight: 0.15KG Package includes: engraving pen*1, USB charging cable*1, diamond engraving needle*2, wrench*1 grinding needle kit*1