Features 1、Adjustable 5‑level speed, with higher working efficiency to better meet your a variety of demands. 2、Low‑voltage design, brass motor as the power unit, and with variou kinds of grinding and drilling accessories. 3、Come with an USB charging port, you can charge anytime and anywhere, more advantageous to use. 4、Work with a suitable grinding head drill pen for engraving, cleaning, polishing, cutting, peeling and polishing. 5、Equipped with sophisticated appearance and high grade, exquisite production provides you more convenience. Specification Item Type: Mini Grinder Set Material: ABS + Brass Model: 202 Color: Gray Voltage: DC3.7V Battery: Built-in 2000mAh Lithium Battery Application: Engraving, cleaning, polishing, painting, cutting, polishing, etc. Package List 1 x Electric Grinder 3 x Drill Bit 1 x USB Cable 2 x Wool Pad 3 x Sand Roll 5 x Chuck 1 x Saw Blade 10 x Polishing Accessories 1 x Manual