Back saws are used primarily for cutting tenons, the back saw gets its name from the piece of folded, or cast, metal that runs along its back edge, supporting the blade. This heavy metal spine keeps the saw steady when cutting through wood, but limits the depth of your cut. Back saws have smaller teeth than panel saws, which results in a finer cut but at a slower pace. There are two types of back saw: the tenon saw and the dovetail saw.
Large tenon saw↑
The large tenon saw has a long blade that cuts deep joints with ease. It has around 11 points, or teeth, per inch (or 4 per centimeter). Its larger size makes it slightly harder to handle than a small tenon saw.
Dovetail saw↑
Similar appearance to a tenon saw, the dovetail saw is smaller with more teeth approximately 18 per inch (7 per centimeter). These produce the fine cuts useful for cutting joints.
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