Fig. 19.
Fig. 20.
Fig. 21.
10. Pencil and Knife.
—Pencil lines may be used in getting out stock from rough material and in laying out work on rough surfaces where a knife line would not be visible. Pencil lines should be carefully made, however. The pencil may be used also in marking bevels, curves and in other places where the knife or gage mark would be injurious. Otherwise, the knife and gage should be used. Pencil lines are easiest removed from wood by means of the eraser.
Fig. 22.