Features of Principal Engine:
1. Rotate speed 1,000-50,000 r/m
2. Eco-friendly design
3. Low noise, high rotate speed
4. Beautiful exterior, light
5. Wide application scope, applicable to medical treatment, fine burnish of small handiwork and ornament.
6. Adopting Human Engineering’s design,comfortable, non-skid and having strong adhesion
7. Rotating converts positive and negative
8. Free maintenance of carboloy brush, no sprakle disturbance and have better torque and durability
