Taper Shank Drill Bit, Drill Bit Size 3/4 in, Drill Bit Point Angle 135 °, Notched Point, Cobalt

  • Item # 439G79
  • My Part #
  • Mfr. Model # C12814
  • Catalog Page # N/A
  • UNSPSC # 27112801
Taper Shank Drill Bit,  Drill Bit Size 3/4 in,  Drill Bit Point Angle 135 °,  Notched Point,  Cobalt close
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Primary Category:
~Machining~Drilling and Holemaking~Taper Shank Drill Bits

$139.00 / each
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  • Shipping Weight 1.136 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

These bits have a straw/bronze finish that improves their wear resistance. Cobalt drill bits tolerate higher drilling speeds and are harder and more wear-resistant than high-speed steel drill bits. They provide some shock absorption and can be used in handheld power tools. These bits have spiral flutes that evacuate chips as the bits drill into a workpiece.

Taper-shank drill bits are directly inserted into the spindle, driving sleeve, or socket of a machine such as a drill press or lathe. This saves time when installing and changing out bits on the machine compared to other styles of drill bits. Taper-shank drill bits are self-locking, which means the friction between the bits and the tool holder keeps the bits in place, even in high-torque applications. These bits should not be used in a collet or chuck.

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Technical Specs

  • Item Taper Shank Drill Bit
  • Drill Bit Size 3/4 in
  • Decimal Equivalent 0.75
  • Measurement System Fractional Inch
  • Material - Machining Cobalt
  • Finish - Machining Straw/Bronze
  • Drill Bit Point Angle 135 Degrees
  • Drill Bit Point Type Notched Point
  • Flute Type Spiral
  • Number of Flutes 2
  • Flute Length 5 7/8 in
  • Maximum Drilling Depth 5-7/8 in
  • Helix Angle 21 Degrees to 34 Degrees
  • Cutting Direction Right Hand
  • Spiral Direction Right Hand
  • Shank Type - Machining Taper
  • Taper Shank Size MT3
  • Overall Length 11/2 in
  • Depth:Dia. Ratio 4xD
  • Coolant Fed Non-Coolant Through
  • Drill Bit Grouping Individual
  • Series 2440
  • Standards ASME B94.11M-1993
  • Drill Diameter Tolerance +0 in /-0.0012 in
  • Material Grade - Machining M42
  • Primary Material Application Cast Iron, Stainless Steel, Steel
  • Primary Material Application ISO Code K, M, P
  • Secondary Material Application Stainless Steel
  • Secondary Material Application ISO Code M
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