If you fall, the tool could cause a serious injury. Instead, use a tool belt holder. Replace loose, splintered, or cracked handles. Loose hammer, axe, or maul heads can fly off defective handles. Use the proper wrench to tighten or loosen nuts.
Pliers can chew the comers off a nut.
When using a chisel, always chip or cut away from yourself. Use a softheaded hammer or mallet to strike a wooden chisel handle. A metal hammer or mallet may cause the handle to split. Do not use a wrench if the jaws are sprung. Do not use impact tools, such as chisels, wedges, or drift pins, if their heads are mushroom-shaped.