Cordless Engraver
Voltage : 3.6V D.C / 600mAh
3 speed : 5000 / 10000/ 15000 min
Charging Voltage : 5V DC via USB
2 hours charging for 90 min. usage.
With Grinding wheels / 2.3mm shank
and Diamond Bits / 2.3mm shank.
Mabuchi motor.