The Starrett Duratec SFB carbon steel band saw blade has a hook tooth, raker set, and a positive rake angle for cuts on aluminum, other nonferrous metals, and wood. The blade is good for contour and straight cuts on a variety of machines. The hook tooth has a positive rake angle for fast, general-purpose cutting, with deep gullets, or spaces between the teeth, allowing the blade to cut softer materials without overloading the gullets with chips. It is made of carbon steel with a flexible back that resists breakage when making curved cuts. The blade has a raker set, which alternates between left-leaning, right-leaning, and unset teeth, for increased chip evacuation that reduces clogging.
Band saw blades are long, continuous bands of metal that loop around the wheels of band saws and can make straight or curved cuts in metal, wood, stone, plastic, and other materials. When purchasing band saw blades, consider the application, as this will affect the choice of tooth rake, tooth set, pitch, and size of the blade. Band saw blades are available with a positive rake angle or a neutral (also called zero or straight) rake angle, and with a raker, wavy, or alternate tooth set. Pitch (the number of teeth per inch or per 25.4 mm) affects the type of finish and may be constant or variable. Band saw blades are available in different lengths and width to fit the requirements of specific band saws.
The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company was founded in 1880 and is headquartered in Athol, MA.