Description: This mini electric grinder is lightweight, while it has high performance and good precision. The ergonomic grip make it convenient to use. With 3 variable rotational speeds, this mini electric grinder is practical to use, the speed range is from 6,000 to 15,000 rpm. It takes a 5V charger about 120 minutes to fully charge the product, while it can be used for about 150 minutes when the product is idling. Made of high-quality metal and ABS, it is very durable to use. This mini electric grinder is 15cm long, 3cm wide, and 3cm high, the diameter of the grinding head is 3.2mm, the maximum clamping size is 3.2mm. It is suitable for craving, polishing, grinding, cutting, sanding, sharpening, etc. Item Name: Mini Electric Grinder Material:ABS,Metal Batteries: 1 x Rechargeable Battery 5V/0.5Ah (Included) Rated Voltage: AC Single-phase, DC 50V And Below Power Supply Voltage: 5V Input Power: 10W No-Load Speed: 14000rpm Chuck Clamping Range: Maximum 3.2mm Size:15cmx3cmx3cm/5.91inx1.18inx1.18in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Electric Grinder 23 X Accessories 1 X USB Cable