High Speed Steel Aircraft Extension Drills
PRECISION TWIST High Speed Steel Aircraft Extension Drills - Size : 17/64   Flute Length : 2-7/8   Drill Point Angle: 135°   Flute Shape: Normal spiral - helical flutes   Overall Length : 12

High Speed Steel Aircraft Extension Drills

Item #: 01-316-215
Size Type: Fractional
Size: 17/64"
Overall Length: 12"

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  • For general purpose deep drilling in normal steels, cast iron, and a variety of other ferrous and non-ferrous metals and alloys.


  • Right hand (clockwise rotation) cutting direction.
  • Standard two flute design.
  • Normal spiral - helical flutes.

Technical Data

  • Cylindrically ground.
  • Manufactured from high speed steel to NAS 907 Type B specifications.
  • Black finish.
PRECISION TWIST DRILL 059017 17/64" x 12"OAL 135° RH Aircraft Ext Drill
Product Specifications
Size Type Fractional
Size 17/64"
Overall Length 12"
Drill Point Angle 135°
Tool Material High Speed Steel
Finish Coating Black Oxide
Drill Grade General Purpose
Drill Type Aircraft Extension
Flute Length 2-7/8"
Flute Shape Normal Spiral - Helical
Hardness 58 to 60 RC
Manufacturing Method Cylindrically ground
Model # 059017
No. of Flutes 2
Point Sharpening Type Split Point
Prop. 65 Yes
Shank Style Straight Shank
Type High Speed Steel Aircraft Extension Drills
Weight 0.175 lbs.
Workpiece Material Range Steel, Non-Ferrous, Cast Iron, Plastics
Country of Origin GENERIC/MIXED BIN
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.