KEO 55716-TIALN 3/4" Size, 3/8" Shank Diam., 82° Carbide Single Flute Countersink
KEO Carbide TiAN Coated 82° Countersinks - Size: 3/4   Overall Length: 2-3/4   Shank Diameter: 3/8

KEO 55716-TIALN 3/4" Size, 3/8" Shank Diam., 82° Carbide Single Flute Countersink

Made In The USA
Item #: 20-062-048
Brand: KEO
Size: 3/4"
Included Angle: 82°
Shank Diameter: 3/8"

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TiAlN coating for longer tool life, higher surface hardness & better lubricity


  • Smooth surface finishes.
  • Better finishes on tool result in better part finishes.
  • Resists chipping.


  • Provides a chamfer on an existing hole.
  • Avoid the common mistake of using too large a diameter on too small an existing hole.
Single Flute
  • General purpose.
  • Works well on copper, brass, aluminum, high-silicon aluminum, composites, zinc-alloys & graphics.
Six Flute
  • Excels on exotic high temp alloys, including: nickel-based alloys such as inconel, waspaloy, rene, monel, hastaloy and similar materials & titanium.


  • All CNC ground finishes.
  • Premium 10% carbide substrates.
  • 3/8" & larger have brazed on heads.
  • Hardened steel shank.
Product Specifications
Brand KEO
Size 3/4"
Included Angle 82°
Shank Diameter 3/8"
Tool Material Carbide
Finish Coating Bright
First Choice For: Stainless Steel
Model # 55716-TIALN
No. of Flutes 1
Overall Length 2-3/4"
Overall Length 2 2-3/4"
Prop. 65 Yes
Shank Style Straight Shank
Tolerance_Included Angle ±1°
Tolerance_Outside Diameter ±.010"
Tolerance_TIR Maximum .002"
Type Carbide TiAN Coated 82° Countersinks
Weight 0.35 lbs.
Workpiece Material Range Steel, Stainless Steel, High-Temp Exotic Alloys, Non-Ferrous, Cast Iron, Plastics
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.

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