An edge tool with a flat steel blade with a cutting edge WordNet 3.0 & Open English WordNet

A chisel is a tool with a characteristically shaped cutting edge 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. Wikipedia

Tool for cutting and carving wood, stone, metal, or other hard materials Wikidata

A tool with a cutting edge at the end. OmegaWiki

A cutting tool consisting of a slim, oblong block of metal with a sharp wedge or bevel formed on one end. It may be provided with a handle at the other end. It is used to remove parts of stone, wood or metal by placing the sharp edge against the material to be cut and pushing or pounding the other end with a hammer or mallet. Wiktionary

Tool consisting of a slim oblong block of metal. Wiktionary (translation)