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- Operates with a rechargeable battery, with sizes ranging from 9.6 volts to 24 volts.
- Most portable drill and popular among DIYers and professionals alike.
- Lower-voltage drills cannot handle more heavy-duty drilling jobs.
- An important feature is an adjustable clutch. This lets the user select the degree of force applied to the drill. This helps prevent the motor from stalling and overheating, which can damage the battery.