Drill America

#40 Cobalt Heavy Duty Jobber Length Drill Bit


product price: $1.85
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Key Features

  • Drill Bit Size #40
  • Shank Type Round
  • Drill Bit Point Angle 135 Degrees
  • Drill Bit Material Cobalt
  • Drill Bit Finish Gold
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Product Information

Dimensions

Drill Bit Size #40
Overall Length 2-3/8"
Flute Length 1-3/8"

Details

Item Jobber Drill Bit
Shank Type Round
Drill Bit Point Angle 135 Degrees
Drill Bit Material Cobalt
Drill Bit Finish Gold
Cutting Direction Right Hand
Number of Flutes 2
Point type Split Point

Description

Cobalt jobber drills. Heavy Duty 135 Split Point, Cobalt Steel, Jobber Length, manufactured to National Aerospace standard 907. These drill bits display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel, and are especially effective in drilling tough, high tensile strength materials like stainless steel, inconel, and titanium. The 135 split point is self-centering and reduces thrust. Sizes smaller than 1/16” or #52, and larger than 1/2” have the 118° standard point.

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