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Countersinks

404 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

General Purpose High-Speed Steel 3-Flute Countersinks

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

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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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General Purpose Carbide 3-Flute Countersinks

General Purpose Carbide 3-Flute Countersinks
Solid carbide countersinks provide excellent wear resistance when machining the toughest materials, such as cast iron and stainless steel. General purpose 3-flute countersinks are the most common choice for expanding 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

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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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120 ° Included Angle

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General Purpose Cobalt Steel 3-Flute Countersinks

General Purpose Cobalt Steel 3-Flute Countersinks
Cobalt steel countersinks are harder than high-speed steel countersinks and provide good wear resistance when machining hard materials at high speeds. General purpose 3-flute countersinks are the standard choice for expanding the top of an existing hole in a variety of materials to ensure screws install flush with the surface of the workpiece. Three-flute countersinks often provide better chip clearance and perform better when machining stringy materials than countersinks with more flutes.

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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Threaded Shank 3-Flute Countersinks

Threaded Shank 3-Flute Countersinks
These countersinks have a threaded shank that keeps them securely attached to a compatible handheld electric or pneumatic power tool during use. This helps ensure the countersink will not fall off the tool when it's being used in hard-to-reach areas. Countersinks are used to expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece. These countersinks can also be used to debur holes.

100 ° Included Angle + Cobalt

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100 ° Included Angle + High Speed Steel

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.