How it works
This saw is a carpenter's hand saw: a thin steel blade with teeth along one edge and a handle at one end. The second view shows the teeth close up.
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Toe, heel and back
The blade is narrow at one end and wide at the other. The narrow end, farthest from the handle, is the toe. The wide end, nearest the handle, is the heel. The edge opposite the teeth is the back.
Point, gullet, set and kerf
The sharp tip of a tooth is its point, and the space between two teeth is a gullet. The teeth are bent to one side and the other in turn. That bend is the set, and it makes the kerf, the slot the saw cuts, wider than the blade.
- Points per inch are always one more than teeth per inch.
Questions and answers
What are the parts of a saw called?
A hand saw has a blade and a handle. The blade has teeth along one edge and a back along the other. Its narrow end is the toe and its wide end, by the handle, is the heel.
What is the kerf of a saw?
The kerf is the slot the saw cuts. Because the teeth are set, bent a little to each side, the kerf is wider than the blade is thick.
How do rip teeth differ from crosscut teeth?
Rip teeth have an upright front and a square edge, like a row of small chisels, and cut along the grain. Crosscut teeth are filed to knife points and cut across the grain. Crosscut saws usually have more points per inch.
What is a backsaw?
A saw with a straight blade and a heavy strip of steel or brass along its back, which keeps the thin blade stiff. A dovetail saw is a small backsaw.