1. Maximum speed: 20000 2. Battery capacity: 500mA 3. Positive and negative unique design, can be operated flexible ergonomic design, more comfortable grip 4. Equipped with a front LED filling device, more accurate operation built-in damping device, life can be extended 5 times 5. Dust-proof function, clear display of dust and residue, convenient cleaning and maintenance 6. Strong power, suitable for a variety of use scenarios adapt to various chip IC grinding cutting motherboard, bracket, remove screws, etc
