Attention Zoro Customers! In observance of Memorial Day, all Zoro offices including customer service will be closed on Monday, May 28. We will resume normal business hours on Tuesday, May 29 at 6:00 a.m. CT. You can continue to place orders online, 24 hours a day, on We hope you have a fun and safe Memorial Day!

Countersink, 1 FL, 100 Deg, 1/4, Cobalt, TiN

KEO| Zoro #: G1648272| Mfr #: 55438-TiN

$11.77 /ea

Orders over $50.00 ship free. Details.Standard ground shipping.
Overall Length (In.): 1-1/2Shank Dia. (In.): 1/4Included Angle (Deg.): 100
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Zoro #: G1648272 Mfr #: 55438-TiN
Overall Length (In.): 1-1/2Shank Dia. (In.): 1/4
Included Angle (Deg.): 100Type: Single Ended
Number of Flutes: 1Item: Countersink
Application: For Cast Iron, Heat-Treated Steels, Titanium Alloys, Plastic And WoodNumber of Pieces: 1
Body Dia. (In.): 1/4Material: Cobalt Steel
Finish: TinCountry of Origin (subject to change): United States


  • The versatility of this tool should increase productivity on all general purpose applications.
  • The large positive rake and single flute construction provides a smooth surface finish on a wide variety of materials.
  • KEO single flute countersinks are ideal for chamfering, deburring and countersinking.