The turner's sizing tool shown in Fig. 296 is used for sizing tenons in the lathe. It is held as shown in Fig. 245. The place to be sized should be of nearly the desired dimension before applying the tool. This is not an easy tool to use and must

Sizing Tools 289

Fig. 296. Sizing Tool.

be held very firmly or it will cut too rapidly or catch and injure the work.

The adjustment is made by loosening the thumbscrew and moving the hooked-shaped piece until the opening at the cutting point is of the correct size. After adjusting, it should be tested on a piece of waste material for it often cuts smaller than is expected.