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PRECISION TWIST DRILL 059212 L 135° 12" OAL, High Speed Steel Extra Long Drill

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Item #
  • Size Type: Letter
  • Size: L
  • Overall Length: 12"
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Product Specifications
More Information
Size L
Type High Speed Steel Aircraft Extension Drills
Overall Length 12"
Model # 059212
Size Type Letter
Drill Point Angle 135°
Tool Material High Speed Steel
Finish Coating Black Oxide
Flute Length 2-15/16"
Point Sharpening Type Split Point
Drill Grade General Purpose
Drill Type Aircraft Extension
First Choice For: Steel
Flute Shape Normal Spiral - Helical
Hardness 58 to 60 RC
Manufacturing Method Cylindrically ground
No. of Flutes 2
Prop. 65 Yes
Series SERIES 502-12
Shank Style Straight Shank
Weight 0.006 lbs.
Workpiece Material Range Steel, Non-Ferrous, Cast Iron, Plastics
Country of Origin IMPORT

Prop 65 Warning

Many metalworking products do contain metals that are included in the latest Prop 65 warning. Exposure to the elements can be harmful. May cause cancer and reproductive harm.

Access hard-to-reach holes


  • For drilling normal steels, cast iron, and a variety of other ferrous and non-ferrous metals and alloys.
  • Used with hand held manual drills and either portable or stationary machines.


  • Right hand (clockwise rotation) cutting direction.
  • Standard 2 flute design, normal spiral - helical flutes.
  • Straight shanks correspond to the drill diameter.

Technical Data

  • Manufactured from high speed steel to NAS 907 Type B specifications.
  • Cylindrically ground, point angle ground to 118° included angle.
  • Black finish.


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