tool
Firmer chisel
Wide chisel (up to 8 cm) with one or two bevels, a tang and a neck, or a
socket and a shank, or all metal (1). Unlike the mortise chisel, the firmer
chisel is for heavy-duty work: carving out a pin, hollowing out a drill bit
hole, etc. The handle is usually fitted with one or two ferrules to prevent
cracking. Some chisels with a triangular cross-section, which often get
thicker towards the handle (2), are only slightly wider than thick. The
Japanese chisel (Japanese: õire nomi), also for the heavier work, is used
in a set with different widths and lengths. See also the joiner's gouge.
[MOT] (1) See a long specimen (95 cm) in "Les moulins": 24. (2) Eg. GROTH:
196.