❑ Intensive use of hand tools that involve force or twisting can cause tendinitis of the hands, wrists, or elbows. Use of hand tools can also cause carpal tunnel syndrome, which results when nerves in the wrist are damaged by swelling tendons or contracting muscles.
Frequent use of some hand tools can cause wrist problems such as carpal tunnel syndrome.
A 22-year-old carpenter s apprentice was killed when he was struck in the head by a nail fired from a powder-actuated nail gun (a device that uses a gun powder cartridge to drive nails into concrete or steel). The nail gun operator fired the gun while attempting to anchor a plywood concrete form, causing the nail to pass through the hollow form. The nail traveled 27 feet before striking the victim. The nail gun operator had never received train- ing on how to use the tool, and none of the employees in the area was wearing PPE.
In another situation, two workers were building a wall while remodeling a house. One of the workers was killed when he was struck by a nail fired from a powder-actuated nail gun. The tool operator who fired the nail was trying to attach a piece of plywood to a wooden stud. But the nail shot though the plywood and stud, striking the victim.
Below are some OSHA regulations that should have been followed.
Employees using powder- or pressure-actuated tools must be trained to use them safely.
Employees who operate powder- or pressure-actuated tools must be trained to avoid fir-
ing into easily penetrated materials (like plywood).
In areas where workers could be exposed to flying nails, appropriate PPE must be used.
❚ PPE—personal protective equipment (eye protec- tion, hard hat, special clothing, etc.)