In most cases the danger posed by hand tools results either from misuse or improper maintenance. General safe practices with hand tools are listed below. When wrench work is above your head, reduce the chance of head injury by standing to one side as you pull on the wrench. When using an adjustable wrench, exert pressure toward the moveable jaw. Never substitute pliers for a job that calls for a wrench.
Hammers Use a machinist's hammer for machine work and a claw hammer for carpentry work.
Check that people and objects are not in the path of your swing. Do not use hammers, mallets, axes, etc. with split handles or loose heads. 8.14.3.3 Screwdrivers and Chisels Use screwdrivers with insulated handles when working near electrical equipment. Do not substitute flat head and Phillips head screwdrivers for each other. Do not use undersized screwdrivers to turn large screws.