The five operations shown in Figs. 40, 41, 42, 43 and 44, give a fair idea of the scope of work that is usually accomplished on a hand jointer and show something of the method by which the work should be done.
The jointer is another tool where the use of the guard should never be omitted.
Fig. 43. Rabetting on the jointer
Fig. 44. Cutting miter joints
59. The Sander.—The sander is an interesting machine in the school shop for on it considerable "forming" can be done as with the lathe, altho its prime use is to make smooth or polish.
In Fig. 45 the boy at the left is forming a mitre while the one on the right is smoothing surface.
Fig. 45. The machine sander in operation