Mini Electric Grinder Pen USB Charging 5 Variable Speed Cordless Tool Kit 3.7V For Engraving

Mini Electric Grinder Pen USB Charging 5 Variable Speed Cordless Tool Kit 3.7V for Engraving Specification: Item Type: Cordless Tool Kit Material: ABS Voltage: 3.7V Gear Speed: 3600r/min 8000r/min 12000r/min 15000r/min 18000r/min Power Supply Battery: 1000mAh Li ion battery built in Charging Voltage: DC 5V Package List: 1 x Electric Grinder Host 1 x Charging Cable 12 x Sand Rings 5 x Collets 5 x Grinding Sticks 2 x Cotton Wheels 1 x Small Circular Saw Blade 3 x Connecting Rods 2 x Grinding Random Style 3 x Drills 1 x Storage Box Note: Different tool accessories fit different collets. If the tool attachment tends to come off the head of the tool replace it with a new collet to fit it.