A hand injury may not be life threatening but will probably be life changing since these injuries can be very difficult to repair. Injuries related to hand tools make up between seven and eight percent of all compensable injuries each year. Many involve severe, permanent disabilities. Puncture wounds are very common results from the use of a screwdriver with a loose handle. Using a dull knife or chisel or even using a screwdriver improperly will often result in a crippling injury. Bruising is a common injury on any jobsite but the chances of it happening are increased by using hand tools incorrectly or using the wrong tool for the job. These injuries can be easily avoided by paying attention to the task at hand and using the correct tool for that task.