- Screwing and Unscrewing.
- RPM is the key for drilling.
- Torque is the key for screwing/unscrewing.
- Variable torque and speed setting are handy.
- Always wear "eye-protection"/]
- Always use "shock-protection"/]
- Consider "impact-protecting-gloves"/]
Obviously far more potent than the cordless drills because of the voltage being 5-10 higher than the cordless ones (depending on your country).