In addition, one handed use and a handle with a low coefficient of friction increases the amount of finger force required to maintain control of the tool. Either purchase tools, or retrofit existing tools, with handles which have a high coefficient of friction to facilitate tool control without exertion of extreme finger force. The impact wrench is pneumatically powered and equipped with a metal handle. Pneumatically driven tools generate vibrations which can desensitize the hands thus increasing the grip force required to control the tool. Metal handles have a poor coefficient of friction which also increases the grip force necessary.
Pneumatic tools can blow cool air onto the hands causing further desensitization.
Desensitization of the hand and fingers requires the use of additional finger force to maintain adequate control of the tool. Provide vibration dampening material for the tool handle that will also increase the coefficient of friction thus decreasing the grip force required to control the tool. Ensure that exhaust air does not blow across the hands. Provide tools with handles that allow for two handed operation thus reducing finger force requirements and shoulder stress. Hand tools such as open and box end wrenches are frequently used to perform the bolt removal operations.