Set up or repair rigging for construction projects, manufacturing plants, logging yards, ships and shipyards, or for the entertainment industry.

Repair and open locks, make keys, change locks and vault combinations and install and repair safes.

Repair tears, holes, and other defects in fabrics, such as draperies, linens, parachutes, and tents.

Work below surface of water, using scuba gear to inspect, repair, remove, or install equipment and structures. They use a variety of power and hand tools, such as drills, sledgehammers, torches, and welding equipment. They conduct tests or experiments, rig explosives, or photograph structures or marine life.

Repair, clean, and adjust mechanisms of timing instruments, such as watches and clocks. Includes watchmakers, watch technicians, and mechanical timepiece repairers.

Install and repair telecommunications cable, including fiber optics.

Install or repair cables or wires used in electrical power or distribution systems. They erect poles and light or heavy duty transmission towers.

Build or repair equipment such as furnaces, kilns, cupolas, boilers, converters, ladles, soaking pits and ovens, using refractory materials.

Install, repair, and maintain mechanical regulating and controlling devices, such as electric meters, gas regulators, thermostats, safety and flow valves, and other mechanical governors.

Install, service, or repair automatic door mechanisms and hydraulic doors. Includes garage door mechanics.