The chuck or vise shown in Fig. 193 is very useful for planer and shaper work. It is bolted to the table and used to hold small work in exact position for accurate cutting.

Fig. 193. - Planer Chuck.

Fig. 194. - Planer Jack.

In the careful adjusting of heavy work on the planer table to the position desired for planing, small jacks such as shown in Fig. 194 are used. These are of various heights, from about 1 1/2 to 6 inches or more. They may be left under the work, but it is best to replace them with wedges of wood or iron, on which the work rests.