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!

3/8 90 deg ZErO Flute CO Deburring Tool

KEO| Zoro #: G1155953| Mfr #: 53521-TiN

$16.17 /ea

Orders over $50.00 ship free. Details.Standard ground shipping.
Sizes Included: 9/64" to 11/32"Overall Length (In.): 1-7/8Shank Dia. (In.): 1/4
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Zoro #: G1155953 Mfr #: 53521-TiN
Sizes Included: 9/64" to 11/32"Overall Length (In.): 1-7/8
Shank Dia. (In.): 1/4Included Angle (Deg.): 90
Cutting Capacity (In.): 9/64 to 11/32Pilot Dia. (In.): -
Type: Single EndedPilot Length (In.): -
Number of Flutes: 0Body Dia. (In.): 3/8
Shank Length (In.): 1-1/4Application: Countersinks And Deburs Aluminum, Non-Metallics And Plastics
Finish: TinNumber of Pieces: 1
Item: CountersinkMaterial: Cobalt Steel
Country of Origin (subject to change): United States


  • KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Colbalt that provide flawless countersinking and deburring.
  • The chatter-free cutting action requires minimal power. The micro-smooth CNC precision ground construction produces clean, smooth cutting without smearing on a variety of materials.
  • The tool especially excels in countersinking or deburring holes in aluminum, plastics and other nonmetallics.