【Visible Speed Adjustment】 The multifunctional engraving pen is equipped with a high-quality motor with 3 adjustable speeds from 5,000 to 10,000 to 18,000 rpm, you can adjust the working speed for different applications. 【Durable and Reliable】 The electric engraving pen has a comfortable grip design for extra comfort and smooth operation. Easy to use and especially suitable for beginners. 【Cordless Engraving】 The engraving pen has only one button, easy to press to start working. Adopts intelligent overload protection chip, high resistance will automatically cut off the power, safe to use. 【USB Rechargeable】 Our engraving pen is rechargeable via USB interface. with quantity display Thanks to the electric current, speed and overload, you can know the application situation of the engraving pen in real time. 【Widely Used】 This engraving kit can be used as a micro-engraving pen to engrave a variety of materials such as metal, stone, plastic, glass, ceramic, wood, leather. A wide selection