Stud drivers are tools used to drive metal fasteners into materials. They come in different sizes and can have features like torque control. Studs are used in various industries, from automotive to furniture manufacturing. Safety precautions should be taken when using stud drivers, including wearing appropriate protection and avoiding pointing the tool at others. Impact wrenches can be air or powder-operated, and formal training may be available for powder-actuated tools.
A stud driver is a tool that is used to drive a metal fastener called a stud into another material. Studs can be thought of as similar to bolts, but they don’t have heads. They can be fully threaded along their lengths, threaded on both ends but not through the middle, threaded on one end only, or completely unthreaded. The term screwdriver can refer to the special socket designed to grip the pin only, or more generally to the entire assembly of the socket and the tool that powers its rotation, such as an impact wrench. Nail guns are sometimes referred to casually as stud drivers, although this is not technically correct.
Drive tool sizes range from simple hand tools to industrial sized freestanding machines. Specially designed stud drivers may have features such as the ability to drive the stud to a specified depth, rather than flush with the receiving material, or torque control to drive the stud to a specified torque and no further. Some stud tools can be used to remove those fasteners as well as install them. Others are specially designed for use underwater or in other atypical environments.
Commercial uses of studs can be on a large scale, such as in the manufacture and maintenance of automotive, locomotive, aircraft, and marine engines and components in residential or commercial construction. Smaller scale and more sensitive applications include uses such as in the assembly of radio and computer components and in furniture manufacturing. The underwater screwdrivers can be used, for example, in the construction, maintenance or modification of submerged or partially submerged concrete structures.
Impact wrenches are most commonly air or powder operated. An air impact wrench uses compressed air to drive the fastener into the receiving material. This requires the use of a bulky compressed air tank which can be inconvenient for the user. Powder-powered means that the tool is powered through the controlled combustion of gunpowder in an enclosed chamber in the tool. Such high-powered automation makes it much easier and faster to drive studs through materials such as concrete.
Because of a screwdriver’s high power and speed, safety precautions should be taken and extreme caution should be exercised when in use. All safety and operating manuals and instructions must be read and understood before using the tool. Appropriate eye, ear, head and hand protection should be worn.
No part of the body should be in front of the muzzle when the rifle is loaded. The screwdriver should never be pointed at another person and should never be left unattended when loaded. Unnecessary bystanders should be cleared of the area whenever possible to avoid injury or death in the event of a pin accidentally bouncing off. Formal training and certification courses may be available, especially for powder-actuated tools.
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