Features: *Brand new high quality and durable *Lightweight and compact design make the electric engraving pen easy to carry. The non-slip handle adds extra comfort and stable control, providing a comfortable experience for precision engraving performance. *Wireless engraving tool with compact body and light weight design is comfortable in the hand. Small and lightweight body makes easy to handle for fine tasks and delicate work. *The carving pen has 3 adjustable speed (5000, 10000, 18000RPM) making it suitable for many different occasions. The lowest speed allows you to polish your nails safely, and the highest speed can also be used for metal engraving. *Cordless Engraver machine can be used * to engrave wood, stone, peaches, crafts, glass Specifications: Name: engraving pen Applicable grinding head diameter: 2.35MM Chuck depth: 25MM Speed: 5000-10000-18000 third gear Power: 8W Use time: The third gear can run for more than 1 hour with no load. If you need to use it for a long time, you can use it while charging. Battery voltage: 3.6V Battery capacity: 300MAH Charging: It can be fully charged to 80% in 30 minutes and can be fully charged in 60 minutes. Bare metal weight: 58 grams Package Included: 1*Engraving pen 1*charging cable 2*Drill bit 1.0MM 1.5 MM 3*Slice 22MM 25MM 32MM 1*slice link 30*grinding needle 1*metal grinding head Note: 1.Transition: 1cm=10mm=0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data.