Electric Grinder Kit: This kit includes a cordless tool and 8 grinding heads, suitable for engraving, sanding, grinding, polishing, and cutting, used for DIY resin crafts. 3 Speed Adjustment: This cordless tool supports 3 speeds adjustment with a range of 6000‑20000RPM, meeting different task needs, ensuring and Comfortable Grip: The tool is pen shape design, providing you with comfortable control and high accuracy, the aluminum alloy casing is and . Battery Powered: This grinder pen is equipped with 3.7V rechargeable battery, a capacity of 650mAh, can work continuously for 200 minutes, easy to use anytime, anywhere. CW CCW Rotation: This electric grinding pen supports forward and reverse rotation, convenient to install and replace the grinding heads, greatly improving work efficiency. Color: As Shown Material: Aluminum Alloy Package Contents: 1*Electric Nail Drill Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.