Fig. 2165. Fig. 2166. Fig. 2167. Fig. 2168.
The round-nosed chisel, [Figs. 2165] and [2166], may be straight from h nearly to the point g, but should be bevelled at and near g, so that the chisel head may be raised or lowered to govern the depth of the cut. Its round nose should also be wider than the metal higher up, so that the chisel head may be moved sideways to govern the direction of the cut as in the cape chisel. The cow mouth chisel, [Figs. 2167] and [2168], should be bevelled from g to the point to enable the governing of the depth of the cut, and should be of greater curvature than the corner it is to cut out, so that its corners cannot wedge in the work.
Fig. 2169.
Fig. 2170.