Sharpening Old W. Marples Sons Chisel

Short movie showing process of sharpening an old Marples Sons beveled paring chisel. The steel in those (old Sheffield) chisels are unique quality. Name Cast Steel on old Sheffield chisels refers to steel made by the crucible cast steel method, invented in Sheffield around 1740 by Benjamin Huntsman (17071776), a clock maker from Doncaster. Huntsman s experiments in crucible steelmaking began in 1740 and over the next two years he developed the simple method of purifying Blister steel by letting it in