Screw gun

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A screw gun is a tool used to install sheetrock, also known as drywall. Screw guns look like a normal drill although they have a "nose" as opposed to a chuck. The nose holds an interchangeable 1/4 inch shank bit {commonly known as a tip}. Most commonly used is a 1" #2. The nose can be adjusted to countersink screws to desired depth. Pressure must be applied to the bit in order to engage the clutch and drive the screws. Some screw gun users like to keep their motor running constantly, and this practice is recommended by manufacturers. There are screw guns which auto-feed screws from a clip. Decking screw guns have a long handle so the tradesman does not have to bend over.