Speed and torque
| The cordless drill/driver is controlled by the speed control trigger. |
 | Pressing the trigger starts the rotation of the cartridge. The further you pull the trigger, the faster the tool will run, but the less torque it will generate. The more you release the trigger, the slower the drill will move, but the more torque will be. This is because engine power is a combination of torque and speed, so there is an inverse relationship between the two (meaning that when one increases, the other decreases, and vice versa). |
 | When the trigger is released, the drill stops completely. |
What RPM should I look for? | |
 | A cordless drill/driver may have high RPM (revolutions per minute), but it will not necessarily complete tasks faster than a low RPM drill, unless it has a high level of torque. If you want to work with stronger materials and larger screws, look for a high torque, high RPM cordless drill/driver. |
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