Chisel

A chisel is a tool with a characteristically shaped cutting edge (such that wood chisels have lent part of their name to a particular grind) of blade on its end, for carving or cutting a hard material such as wood, stone, or metal by hand, struck with a mallet, or mechanical power. The handle and blade of some types of chisel are made of metal or of wood with a sharp edge in it.

Chiselling use involves forcing the blade into some material to cut it. The driving force may be applied by pushing by hand, or by using a mallet or hammer. In industrial use, a hydraulic ram or falling weight ('trip hammer') drives a chisel into the material.

A gouge, one type of chisel, serves - particularly in woodworking, woodturning and sculpture - to carve small pieces from the material. Gouges most frequently produce concave surfaces. A gouge typically has a 'U'-shaped cross-section.

Chisel comes from the Old French cisel, modern ciseau, Late Latin cisellum, a cutting tool, from caedere, to cut.

Chisels have a wide variety of uses. Many types of chisel have been devised, each specially suited to its intended use. Different types of chisel may be constructed quite differently, in terms of blade width or length, as well as shape and hardness of blade. They may have a wooden or plastic handle attached using a tang or socket, or may be made entirely of one piece of metal.

Woodworking chisels range from small hand tools for tiny details, to large chisels used to remove big sections of wood, in 'roughing out' the shape of a pattern or design. Typically, in woodcarving, one starts with a larger tool, and gradually progresses to smaller tools to finish the detail. One of the largest types of chisel is the slick, used in timber frame construction and wooden shipbuilding. There are many types of woodworking chisels used for specific purposes, such as:

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