![]() It is taken by setting the tip (or point) of one tooth at the zero point on a ruler, and then counting the number of points between the zero mark and the one-inch mark, inclusive (that is, including both the point at the zero mark and any point that lines up precisely with the one-inch mark). Points per inch (25 mm): The most common measurement of the frequency of teeth on a saw blade. ![]() ![]() The kerf left behind by a laser beam can be changed based on the laser's power and type of material being cut. The kerf created by a given blade can be changed by adjusting the set of its teeth with a tool called a saw tooth setter. For example, a too-thin blade can cause excessive wobble, creating a wider-than-expected kerf. Although the term "kerf" is often used informally, to refer simply to the thickness of the saw blade, or to the width of the set, this can be misleading, because blades with the same thickness and set may create different kerfs. The kerf depends on several factors: the width of the saw blade the set of the blade's teeth the amount of wobble created during cutting and the amount of material pulled out of the sides of the cut. Kerf: The narrow channel left behind by the saw and (relatedly) the measure of its width.Gullet: The valley between the points of the teeth.Fleam: The angle of the faces of the teeth relative to a line perpendicular to the face of the saw.Back: the edge opposite the toothed edge.Abrasive saw: A saw that cuts with an abrasive disc or band, rather than a toothed blade.The kerf may be sometimes be wider than the set, depending on wobble and other factors. The term set describes how much the teeth protrude. The teeth protrude to the left and right, so that the saw cut (kerf) is wider than the blade width. Diagram showing the teeth of a saw blade when looking front-on.
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