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6-Flute Chatter–less Countersink

America´s Finest High–Speed Cutting Tools™

6–Flute 82° Chatter–less Countersink
    6–Flute 82° Chatter–less Countersink
    Chatter–less 6–flute design reduces vibration.

    Multiple cutting edges extend tool life.

    Made in the U.S.A
    6–Flute 82° Chatter–less Countersink DOWNLOAD: PDF

6–Flute 82° Chatter–less 4pc. Countersink Set
    4pc. HSS Countersink Set
    Sizes: 1/4", 5/16", 3/8", 1/2" + Shank Sizes: 1/4", 3/8"

    82° Countersink produce the ideal profile for the majority of flat head fasteners.

    Made in the U.S.A
    6–Flute 82° Chatter–less 4pc. Countersink Set DOWNLOAD: PDF

High Speed Steel Chatter–less Countersink
A common use is to allow the head of a countersunk bolt, screw OR rivet, when placed in the hole, to sit flush with OR below the surface of the surrounding material (by comparison, a counter bore makes a flat-bottomed hole that might be used with a socket-head cap screw).

Fluted countersinks come in several sizes, able to cut conical holes intended to fit screws of varying head dimensions. A pilot hole is first drilled for the screw, followed by countersinking the hole to allow a flathead screw to seat flush with the work surface.

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