xception of the smaller one, may be
used to the best advantage in connection with a saw table, like that
shown in Fig. 8. This is a plane iron table having a longitudinal
groove in its face to receive the guiding rib of the carriage, shown
in Fig. 9, and a transverse groove running half way across, to receive
a slitting gauge, as shown in Fig. 8. The table is supported by a
standard or shank, which fits into the tool-rest socket. The saw
mandrel is supported between the centers of the lathe, and the saw
projects more or less through a slot formed in the table. The gauge
serves to guide the work to be slotted, and other kinds of work may be
placed on or against the carriage, shown in Fig. 9.

It is a very simple matter to arrange guiding pieces for cutting at
any angle, and the saw table may be used for either metal or wood. The
saws for wood differ from those used for metal; the latter are filed
straight, the former diagonally or fleaming. Among the many uses to
which metal saws may be applied we mention the slitting of sheet
metals, splitting wires and rods, slotting and grooving, nicking
screws, etc. Fig. 10 shows a holder for receiving screws to be nicked.
It is used in connection with the saw table, and is moved over the saw
against the gauge.

To facilitate the removal of the screws the holder may be split
longitudinally and hinged together. Another method of nicking screws
is illustrated by Fig. 11. A simple lever, fulcrumed on a bar held by
the tool post, is drilled and tapped in the end to receive the screw.
After adjusting the tool all that is required is to insert the screw
and press down the handle so as to bring the screw head into contact
with the saw.

Where a lathe is provided with an engine rest, the cutter shown in
Fig. 6, mounted on the mandrel shown in Fig. 5, is very useful; it is
used by clamping the work to the slide rest and moving it under the
cutter by working the slide rest screw.

To make a cutter of this kind is more difficult than to make a saw,
and to do it readily a milling machine would be required. It may be
done, however, on a plain foot lathe, by employing a V-shaped cutter
and using a holder (Fig. 7) having an angular groove for receiving the
cylinder on which the cutting edges are formed. The blank can be
spaced with sufficient accuracy, by means of a fine pair of dividers,
and after the first groove is cut there will be no difficulty in
getting the rest sufficiently accurate, a