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This Starrett Duratec PH carbon steel band saw blade has a skip tooth, straight rake angle, hard back, and a raker tooth set for creating straight cuts on easy-to-machine low-alloy steels, nickel-based alloys, and other nonferrous alloys. The skip (also called buttress) tooth has a straight (zero) rake angle for general-purpose cutting, and the expanded gullets, or spaces between the teeth, allow the blade to cut softer materials without overloading the gullets with chips. The blade can make cuts in solid, structural, and tubular shapes, as well as solid and tubular bundles. It is made of a single piece of carbon steel and has heat-treated teeth that can make cuts in materials up to 50 HRC (Rockwell hardness). The back of the blade has also been heat-treated, providing increased rigidity straighter cuts. The blade has a raker tooth set, which alternates between left-leaning, right-leaning, and unset teeth, for increased chip evacuation that reduces clogging. This band saw blade works for general-purpose cutting.
Band saw blades are long, continuous bands of metal that are looped around the wheels of a band saw. They can make straight or contour cuts in metal, wood, stone, plastic, and other materials. The material, dimensions, and teeth of a blade determine which materials and applications it should be used for. The tooth rake angle may be positive or straight (also called zero). The appropriate width and length of the blade are determined by the requirements of the machine, and contour cuts require a narrower blade than straight cuts. Pitch (the number of teeth per inch, or per 25mm) must also be considered when selecting a blade. A finer pitch blade (more teeth per inch) is required to cut thin sections, while a coarse pitch blade (fewer teeth per inch) is required to cut thicker sections. Band saw blades must be properly broken in before being used.
The L.S. Starrett Company was founded in 1880, originally manufacturing bench vises, squares, and other tools. It has acquired other companies, expanding its services into making precision measurement instruments and tools, such as calipers, micrometers, saw blades, and gauges. Starrett is headquartered in Athol, MA, and has manufacturing facilities in Brazil, the United Kingdom, China, and other locations.
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