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Chicago Latrobe 120B High-Speed Steel Drill Length Long Long-awaited Unc Free Shipping Cheap Bargain Gift Bit

Chicago Latrobe 120B High-Speed Steel Long Length Drill Bit, Unc

$29

Chicago Latrobe 120B High-Speed Steel Long Length Drill Bit, Unc

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Product description

Size:#57

The Chicago-Latrobe 120B series long length drill bit is made from high-speed steel with an uncoated (bright) finish and has a 118-degree conventional point for use in deep drilling applications on a range of materials, especially soft metals. High-speed steel (HSS) provides hardness for wear resistance. The uncoated finish has no additional surface treatment or coating. A long length drill bit reaches farther and drills deeper than a jobber length drill bit because it has longer flutes and overall length. The drill bit has a fast spiral (also known as a high helix angle) with wider and more compact flutes than a standard drill for increased chip removal and deep drilling applications. The round shank accommodates most drill chucks.

Drill bits are cutting tools used to make holes in a range of materials using machines such as handheld portable drills, machining centers, and lathes. Drill bits come in a variety of lengths and types, the most common of which is the twist drill bit. The round, twisted shaft of the twist drill bit typically has two cutting edges and flutes. The helical twist of the flutes brings chips up and away from the cutting edges and allows for coolant to reach the cutting edges. Jobber length twist drill bits, the most common length of twist drill bit, offer a good compromise of length and reach for the widest range of materials and applications. Mechanic's length twist drill bits (also called maintenance length) are a little shorter than jobber length and less prone to deflection when drilling. Short length twist drill bits (also called stub or screw-machine length) are the shortest and stiffest twist drill bits, helping to reduce the chance of deflection or breakage when drilling. Reduced shank twist drill bits (also called Silver and Deming drill bits) have a shank that is smaller in diameter than its shaft, permitting drilling machines with a 1/4", 1/2", or 3/4" drill chuck to create large holes. Long length twist drill bits (also called taper length) are a little longer than jobber length, allowing for deeper holes and longer reach. Extra-long length twist drill bits (also called extension) are longer than long length twist drill bits for greater reach or for drilling deeper holes.

Chicago-Latrobe manufactures drill bits and accessories, reamers, countersinks, and blanks. The company, founded in 1890 and headquartered in Clemson, SC, meets International Organization for Standardization (ISO) standard 9001.

Chicago Latrobe 120B High-Speed Steel Long Length Drill Bit, Unc

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