A bolt cutter, sometimes called bolt cropper, is a tool used for cutting chains, padlocks, bolts and wire mesh. It typically has long handles and short blades, with compound hinges to maximize leverage and cutting force. A typical bolt cutter yields 20 kN or 4000 lb of cutting force for a 250 N or 50 lb force on the handles.
There are different types of cutting blades for bolt cutters, including angle cut, center cut, shear cut, and clipper cut blades. Bolt cutters are available usually in 12", 14", 18", 24", 30", 36" and 42" length. The length is measured from the tip of the jaw to the end of the handle.
Many companies manufacture bolt cutters with fiber glass handles which can be used for cutting live electrical wires and are extremely useful during rescue operations. The fiber glass handles have another advantage of being lighter in weight than the conventional drop forged or solid pipe handles.