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Cobalt 135 Deg. Jobber Length Drill Bit

  • Zoro #: G0114060
  • Mfr #: R15COY

$11.00 /ea

Order in multiples of 6

  • Drill Bit Finish: Bronze Oxide
  • Material: Cobalt
  • Item: HSS-E Jobber Drill,Bronze,Y
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Precision Twist Drill #R15COY Specifications

  • Zoro #: G0114060
  • Mfr #: R15COY
Drill Bit Finish: Bronze Oxide Material: Cobalt
Item: HSS-E Jobber Drill,Bronze,Y Coolant Through: No
Drill Bit Grouping: Drill Bit Drill Bit Dimension Type: Letter
Point Type: Self Centering Split Point Shank Dia.: 0.4040"
Drill Bit Point Angle: 135 Degrees Cutting Direction: Right Hand
Drill Bit Material: Cobalt Drill Bit Size: Y
Country of Origin (subject to change): Brazil
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The Precision Twist R15CO jobber-length, heavy-duty, 135-degree, split-point, round-shank drill bit drills holes with best performance in alloyed hardened steel, nodular graphite, malleable cast iron, titanium, and alloyed nickel. It can drill to a depth up to four times the diameter of the drill size. The shank diameter is the same as the drill size. While the R15CO series was designed for the aircraft industry, it also works well for drilling into a variety of materials. The jobber length and 135-degree split-point drill geometry provide adequate reach and ensure a more accurate hole by reducing walking when the hole is started. The finish retains lubricant to aid in wear resistance and chip flow. The Precision Twist R15CO series has a type N flute form (a regular helix angle of 21 to 34 degrees). The gold oxide is a low temperature heat treatment which reduces grinding stress within the tool, and has an appealing, easy-to-identify gold color. Gold oxide is commonly used to identify cobalt steel tools. Spiral flutes act as a passageway for chip extraction from the hole and for coolant to enter the hole. Right-hand twist brings chips up and away from the cutting edge. Made of HSS with cobalt, which is many times harder/stiffer than HSS, it will hold an edge longer, and deflect less than HSS. It is also more resistant to heat than HSS. These qualities allow it to run at higher speeds and feeds. and away from the cutting edge. They are made to ANSI (fractional sizing) and NAS 907 type J industry standards, which ensure that drill bits around the world conform to the same specifications.


Restrictions and Compliance

WARNING : Cancer and Reproductive Harm -

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