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Sign In Register Forgot User ID? Forgot Password?Countersinks
85 products
Countersinks expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece. This helps prevent the workpiece material from swelling when a screw is installed in the hole and tightened down in metalworking applications. Countersinks can also be used to debur holes for a smooth finish.
Primary Material Application
Fast-Cut High-Speed Steel 1-Flute Countersinks
High-speed steel countersinks provide good wear resistance in a wide range of countersinking applications. Single-flute countersinks are suitable for use at high speeds. They leave clean edges on holes and have a high, positive rake that reduces vibration as they expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece.
60 ° Included Angle
82 ° Included Angle
90 ° Included Angle
100 ° Included Angle
110 ° Included Angle
120 ° Included Angle
General Purpose High-Speed Steel 3-Flute Countersinks
High-speed steel countersinks provide good wear resistance in a wide range of countersinking applications. General purpose 3-flute countersinks are the most commonly used type of countersink. They expand the top of an existing hole in a range of materials to ensure screws install flush with the surface of the workpiece. Three-flute countersinks typically provide better chip clearance and perform better when machining stringy materials than countersinks with more flutes.
60 ° Included Angle
82 ° Included Angle
90 ° Included Angle
100 ° Included Angle
110 ° Included Angle
120 ° Included Angle
General Purpose High-Speed Steel 4-Flute Countersinks
High-speed steel countersinks offer good wear resistance in a wide range of countersinking applications. General purpose 4-flute countersinks expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece. Four-flute countersinks typically provide more wear resistance than countersinks with fewer flutes.