Product Features 1. High efficiency and safety. 2. Water-seal-free design allows for continuous dry drilling. 3. Compact and powerful. 4. Stepless speed control switch; starting at a slow speed ensures greater safety. 5. Electronic clutch design effectively protects the motor. 6. Pure copper clutch design with high-temperature resistance. 7. Mechanical clutch design ensures personal safety. 8. Gross weight of 6.3 kg; lightweight and more energy-efficient.