Torquing involves the process of measuring a force's tendency to produce rotation and torsion about a designated axis. Efficient functioning of a threaded fastener relies upon its objective to clamp parts together with a tension greater than any separating external force. Therefore, the bolt remains under near constant stress, with immunity to fatigue. The necessary tightening torque process is imperative to ensure there is correct initial tension.

Recognized as a percussive rock-drilling device, jackhammers are hand-held and pneumatically operated. Jackhammers are most commonly used for drilling and splitting brick, concrete, tile, rock and other hard construction material.

New York City consists of five boroughs: Manhattan, Brooklyn, Bronx, Richmond, and Queens. The specialized industry segments of the New York City area include high rise construction, elevator maintenance, tunneling, utilities, mass transit, and municipal departments. These facilities require highly specialized equipment and tools for construction, installation and upkeep.