[Fig. 3219] represents a cutter (in a chuck) for cutting a dove-tailed groove, and [Fig. 3220] one for rounding an edge, it being obvious that a wide range of shapes may be given to such cutters, and that, as they may be sharpened on an emery wheel, they may be left comparatively hard, thus enhancing their durability.
Fig. 3220.
To regulate the depth to which a cutter such as shown in [Fig. 3220] will cut, a collar or washer is placed beneath it to act as a guide to the edge of the work.
Fig. 3221.
[Fig. 3221] represents a machine in which rotary cutters are used to produce all kinds of panel work, as well as edge moulding or friezing. In this case the cutter is above the table, the latter being adjustable for height to suit the thickness of the work. Examples of some of the work are shown at the foot of the machine.