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Cutter Material
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Finish
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  • Black Oxide
  • Gold Oxide
System of Measurement
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  • Inch
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Tool Flute Type
  • Half Round
    Left Hand Fast Spiral
    Left Hand Spiral
    Parabolic Spiral
  • Right Hand Fast Spiral
    Right Hand Spiral
    Slow Spiral
    Straight
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Point Style
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  • 135 degrees
  • Split
Point Angle
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  • 135 Degrees
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Special Features
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  • Single End
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  • Individual
  • Multi-item & Sets
Overall Length
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Threaded Shank Bits

Threaded shank drill bits can be screwed into a drill or drill attachments. This design is a chuck-less attachment that can decrease the overall length of the drill and drill bit so it can fit into confined spaces. Slippage with a chuck tool-holding mechanism… Learn More

Drill bits are made of durable cutter materials such as high-speed steel (HSS), carbide and cobalt. Some drill bits are uncoated or bright; others have a finish – either a surface treatment or a coating - to enhance the bit’s performance on specific material types or in certain applications.

Drill point styles vary based on application. They have different point angles and style of cutting edges. The most common conventional style has a 118-degree point angle and is a good compromise between performance and price across a wide range of materials. Each style offers specific performance characteristics in different materials and drilling applications. Tool flute types are helical (curved) or straight grooves cut or ground into the body of the drill bit to provide cutting edges, enable removal of chips (also called swarf), and to allow cutting fluid or coolant to reach the cutting edges.

Another feature to consider is the shank, the portion where the drill bit is held by a tool holder. The shank transfers the torque to the drill bit. Drill bit diameter is the measurement around the bit’s shank. Drill bit cutter sizes are described by various sizing standards such as inch (English), metric, wire gauge (80 to 1), and letter (A to Z). This reflects the size of the hole being drilled. Standards ensure that dimensions are the consistent across manufacturers.

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