Fig. 19.—Teeth of Cross-cut Saw.
Saws.—A boy can get along with two saws, a cross-cut saw for general use and a compass-saw for finer work, such as circular sawing, and cutting thin wood where a large saw would be too coarse and apt to split the work. But you will often have need of a rip-saw, back-saw, and bracket-saw. They were therefore included in the list of tools on page [14], and you can add them to your outfit as your money permits.
The Cross-cut Saw is, of course, intended for cutting across the grain, while the rip-saw is for cutting with the grain, or ripping. The former saw can be used for rip-sawing, but the operation is much slower, and when you have much of it to do, as in ripping a six-foot board, for instance, you will find the work tedious.
The Rip-saw is not fit for cross-cutting, as it leaves the cut fibres in a very rough condition.
The difference in these two saws lies in the shape of their teeth. This can be seen by picking them up and examining their cutting edges. You will find the teeth are bent out of line, the first to the right side and the next to the left. This is known as the "set" of the teeth, and the quality of your work will depend largely upon the care with which the teeth have been sharpened and set. At first you may confuse these two saws, but if you will notice that the teeth of the cross-cut saw come to sharp points and are bevelled on the sides, while those of the rip-saw are not sharpened on the sides, and instead of being pointed on the ends are chisel-shaped (see Figs. [19] and [20]), you will have little trouble in distinguishing them.
Fig. 20.—Teeth of Rip Saw.