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  11. #40x12" HSS Aircraft Extension Drill Bit
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Drill America

#40x12" HSS Aircraft Extension Drill Bit

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Key Features
  • Item: Aircraft Extension Drill Bit
  • Drill Bit Material: High Speed Steel
  • Drill Bit Finish: Black Oxide
  • Drill Bit Point Angle: 135 Degrees
  • Flute Length: 1-3/8"
  • Number of Flutes: 2
  • Shank Type: Round
  • Cutting Direction: Right Hand
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$6.00
Must order in multiples of 12
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Specifications

Dimensions

Drill Bit Size #40
Flute Length 1-3/8"
Overall Length 12"

Details

Item Aircraft Extension Drill Bit
Drill Bit Material High Speed Steel
Drill Bit Finish Black Oxide
Drill Bit Point Angle 135 Degrees
Number of Flutes 2
Shank Type Round
Cutting Direction Right Hand
Point Type Split Point

Description

Manufactured to Aerospace Standard 907. The 135 degree split point is self-centering and reduces thrust. Ideal for drilling in mild steel where extra length for reach is required. They have a black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow. Sizes smaller than 1/16 and #52 have the 118 degree standard point.

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