Dormer R5101/2 Multi-Application Jobber Length CDX Solid Carbide Drill, Parellel Shank, Cutting Diameter 12.7 mm, Total Length 151 mm

  • Added more than 30 days ago
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Item is brand new Original sealed packaging
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List Price $192.00
$93.39
Features
  • The Dormer R510 series jobber length drill bit is made from solid carbide with a TiN coating and has a 130-degree split point for use in general-purpose drilling on ferrous and nonmetallic materials. Solid carbide is harder than high-speed or cobalt steel, provides longer tool life at higher speeds, and produces close-tolerance holes in hard materials. The titanium nitride (TiN) coating offers increased wear resistance, extended tool life, and higher hardness than an uncoated drill bit. A self-centering 130-degree split point penetrates hard material without a pilot hole, and produces smaller chips that reduce clogging compared to a 118-degree point. Compared to standard drill bits, these tools have a thicker web for increased strength and rigidity. This jobber length drill bit has a versatile midrange drilling depth of 4 times its diameter, and is a common choice for general-purpose applications. The round shank accommodates most drill chucks. The drill bit conforms to Deutsches Institut f r Normung (DIN) 338 standard.

    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.

    Precision Dormer manufactures cutting tools under the brands Precision Twist, Dormer, and Union Butterfield. The company, headquartered in Crystal Lake, IL, meets International Organization for Standardization (ISO) standards 9001 and 14000.

UPC
7320760381021
Brand
Dormer
Model
R5101/2
Part
R5101/2

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