For the ordinary work of a wood-turning lathe only the simple wooden arbor is required. Such arbors are shown in use in Figs. 163, 172, 174, and 206. They should be made of bits of waste material. Usually they are of hard wood, yet for such uses as holding of rings for re-polishing, soft wood may be used.

Be sure to force the arbor on to both centers far enough to hold it from slipping on the live-center. The marks at each end should be large enough to permit the arbor to be removed and replaced in exactly the same position. Do not forget to mark it as indicated in Figs. 9 and 10.

In fitting the arbor to the work, make the taper so slight that there will be a firm bearing nearly the whole length of the hole. Avoid jamming the ends in forcing the work either on or off of the arbor. Arbors should be carefully made, and kept for future use.