Nail Gun

A nail gun is a type of tool used to drive nails into wood or some other kind of material. Electromagnetism, compressed air, gases such as butane or propane, or, for powder-actuated tools, a small explosive charge, usually drive the nail gun. Because of their efficiency and time saving ways, nail guns have in many ways replaced hammers as tools of choice amongst builders.

Nail guns do not use individual nails. Instead, the nails are mounted in long strips (similar to a stick of staples) or in a plastic carrier coil, depending on the design of the nail gun. Some strip nailers use a clipped head so the nails can be placed closer together, which necessitates less frequent reloading.

Nail Gun

Nail guns vary in the length and gauge (thickness) of nails they can drive.

Nail guns also have many advantages over hammers as they quickly and repeatedly drive the fastener and consistently set the nail head at, or below, the surface. Most nail guns can be set to operate in either of two modes:

In one mode, the nail gun must first be pressed against the work piece and the trigger then depressed. One nail is then fired and the trigger must be released before the next nailing cycle can commence.

In the other mode, the trigger is depressed before the nail gun is brought into contact with the work piece. Then, each time the nail gun is pressed against the work piece, a nailing cycle commences and one nail is fired. By repeatedly "bumping" the nail gun against the workpiece, any number of nails can be rapidly fired.

Nearly  37,000 people every year go to emergency rooms with injuries from nail guns. Forty percent of those injuries occur to consumers. Nail gun injuries have tripled from 1991 to 2005. A recent survey shows that foot and hand injuries are among the most common.

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