5/16 AOH-25L 12" OIL/HOLE
5/16 AOH-25L 12OIL/HOLE

5/16 AOH-25L 12" OIL/HOLE

Item #: 01-150-320
Drill Point Angle: 118°
Finish Coating: Uncoated
Weight: 0.2 lbs.
5/16 AOH-25L 12" OIL/HOLE is no longer available for purchase. If you need information about product substitutions, please contact one of our customer service representatives at 1-800-221-0270 or click the chat button at the top of the page.
Allows drilling to greater depth than other coolant fed drills


  • For drilling operations where a coolant or oil delivery system is available.
  • For drilling holes in a variety or normal steels, cast iron, and other ferrous and non-ferrous metals and alloys.
  • Used straight shank in appropriate coolant fed toolholder.
  • 22° flute helix and constant heavy duty web design add to the overall strength of these drills and aid in chip removal.


  • Right hand (clockwise rotation) cutting direction.
  • With 2 holes through their length to feed fluid to the drill.
  • Normal 118° drill point angle, notch point and rolled heel for better coolant delivery & chip ejection.

Technical Data

  • Cylindrically ground.
  • Constant heavy duty web for greater strength.
  • Shank coolant entry to suit industry standard toolholders.
  • Black finish.


  • For best results when drilling under 3/8" diameter, use a drill bushing or pilot hole of same diameter.


Limited Supply.
TTC PROD AOH-25L HSS Fractional 12" Overall Extra Long Straight Shank Coolant Fed Oil Hole Drills
Product Specifications
Drill Point Angle 118°
Finish Coating Uncoated
Weight 0.2 lbs.
Coolant Through Yes
Country of Origin Import

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