The Japanese chisel, or nomi, is built on the same layered-steel principle as the Japanese plane: a hard cutting blade called hagane is forge-welded to a softer body of metal called jigane, so the tool combines a very hard edge with a tougher, more shock-resistant body behind it.
Facts
Introduced When (Circa)Japanese chisels are attested in a depiction of their use among other tools from the early 14th century; an earlier date of origin is not documented in this source. 1 OriginThe earliest surviving depiction of Japanese chisels shows them in use alongside other woodworking tools, dated to the early 14th century. 1 Sources
1. Japanese Chisel (Wikipedia)
Wikimedia FoundationImage caption, tool-use depictionQuote, Image caption, tool-use depiction
Japanese chisels in use, among other tools (early 14th Century)
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