“Bolt cutter”的意思、由来-开放百科全书

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Bolt cutter

释义

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{{Clarify|date=January 2012}} bolt cutter yields {{convert|20|kN}} of cutting force for a {{convert|250|N}} 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 inches (30.5, 35.6, 46, 61, 76, 91.4 and 107 cm) in length. The length is measured from the tip of the jaw to the end of the handle.

Angle cut has the cutter head angled for easier insertion. Typical angling is 25 to 35 degrees.
Center cut has the blades equidistant from the two faces of the blade.
Shear cut has the blades inverted to each other (such as normal paper scissor blades).
Clipper cut has the blades flush against one face (for cutting against flat surfaces).

Bolt cutters with fiberglass handles can be used for cutting live electrical wires and are useful during rescue operations. The fiberglass handles have another advantage of being lighter in weight than the conventional drop forged or solid pipe handles.

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4 : Cutting tools|Mechanical hand tools|Metalworking cutting tools|Swedish inventions

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