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Nail Machines
In engineering, woodworking and construction, a nail is a pin-shaped, sharp object of hard metal, typically steel, used as a fastener. Nails for specialized purposes may also be made of stainless steel, brass or aluminium. Nails are typically driven into the workpiece by a hammer or by a nail gun driven by compressed air or a small explosive charge. A nail holds materials together by friction in the axial direction and shear strength in lateral directions. The point of the nail is also sometimes bent over or clinched to prevent it from pulling out. Nails are made in a great variety of forms for specialized purposes. The most common type of nail is a "wire nail".
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