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Countersinks

462 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.
Number of Flutes

Fast-Cut High-Speed Steel 1-Flute Countersinks

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

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82 ° Included Angle

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90 ° Included Angle

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100 ° Included Angle

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110 ° Included Angle

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120 ° Included Angle

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Fast-Cut Carbide 1-Flute Countersinks

Fast-Cut Carbide 1-Flute Countersinks
Solid carbide countersinks provide excellent wear resistance when machining the toughest materials, such as cast iron and stainless steel. 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

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82 ° Included Angle

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90 ° Included Angle

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100 ° Included Angle

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Fast-Cut Cobalt Steel 1-Flute Countersinks

Fast-Cut Cobalt Steel 1-Flute Countersinks
Cobalt steel countersinks are harder than high-speed steel countersinks and provide good wear resistance when machining hard materials at high speeds. Single-flute countersinks are suitable for high-speed countersinking operations. 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

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82 ° Included Angle

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90 ° Included Angle

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100 ° Included Angle

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110 ° Included Angle

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120 ° Included Angle

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