Fig. 2930.
Fig. 2931.
Fig. 2932.
To forge a double eye, such as in [Fig. 2930], we may take a piece of sufficient size and fuller at a a, [Fig. 2931]; a hole is then punched at b, and it is then split through to the dotted line in [Fig. 2931], and opened out as in [Fig. 2932], and then forged to shape.