Screw gun

The nose holds an interchangeable 1⁄4-inch (6.4 mm) shank bit, commonly known as a tip.

The user must apply pressure to the bit to engage the clutch and drive the screws.

It is possible to drive a series of screws with the motor running continuously, and many manufacturers recommend doing this to install drywall.

Impact drivers are used to tighten or loosen fasteners with a hammer that provides greater torque for more power.

Significant features for driving screws that they lack are the ability to set depth and autofeed.