Speed: Speed of drilling and driving screws.
Power: Denotes the twisting force for tightening and loosening.
Run time: Reflects how much work the drill can perform per battery charge, as measured on a dynamometer.
Handling: Denotes the ease of handling and controling the drill during operation.
Noise: The dBa level at ear level, indicating whether or not ear protection should be used during prolonged operation.
