Attention! In recognition of Memorial Day, Fullerton Tool will be closing early on Friday, May 25th at 3:30 PM (EST) and will be closed on Monday, May 28th. Happy Memorial Day!


Fullerton Tool Company     Countersinks


Fullerton Tool offers a selection of carbide countersinks for use in various materials and with various angles. Countersinks are circular cutting tools that allow a manufacturer to cut a conical hole in an object that typically allows the head of a bolt or screw to be countersunk. In addition to a strong selection of standard items, Fullerton Tool also designs carbide countersinks to meet specific manufacturer requirements.


  • Solid Carbide Cutting Heads
  • Versatile Selection
  • Various Coatings Available
  • Standards and Full Specials