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Countersinks
Available38 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.
Body Dia.
Smooth-Finish High-Speed Steel 6-Flute Countersinks
High-speed steel countersinks provide good wear resistance in a wide range of countersinking applications. Six-flute countersinks provide fast material removal and leave a smooth finish as they expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece. They remove more material with each revolution and typically provide more wear resistance than countersinks with fewer 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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Smooth-Finish Cobalt Steel 6-Flute Countersinks
Cobalt steel countersinks are harder than high-speed steel countersinks and provide good wear resistance when machining hard materials at high speeds. Six-flute countersinks provide fast material removal and leave a smooth finish as they expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece. They remove more material with each revolution and typically provide more wear resistance than countersinks with fewer 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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High-Speed Steel 4-Flute Machine Countersinks
High-speed steel countersinks provide good wear resistance in a wide range of countersinking applications. Also known as machine countersinks, 4-flute countersinks have a long shaft that allows them to be used in lathes, screw machines, and CNC machines. They expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece. 4-flute countersinks typically provide more wear resistance than countersinks with fewer flutes.
60 ° Included Angle
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82 ° Included Angle
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90 ° Included Angle
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Cobalt Steel 4-Flute Machine Countersinks
Cobalt steel countersinks are harder than high-speed steel countersinks and provide good wear resistance when machining hard materials at high speeds. Also known as machine countersinks, 4-flute countersinks have a long shaft that allows them to be used in lathes, screw machines, and CNC machines. They expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece. 4-flute countersinks typically provide more wear resistance than countersinks with fewer flutes.
60 ° Included Angle
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82 ° Included Angle
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90 ° Included Angle
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