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    3 Products
    About Countersinks
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    Choose the right countersink angle, body diameter, and number of flutes for your application.

    Long-Reach Extensions for Threaded-Shank Countersinks

    Image of Product. Front orientation. Countersink Extensions. Long-Reach Extensions for Threaded-Shank Countersinks.
    Increase the reach of long-reach threaded-shank countersinks (sold separately). These extensions are compatible with 82°, 90°, and 100° angle threaded-shank countersinks.
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    Uncoated Carbon Steel
    4"3/8"1/4"-28
    		1/4"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3109A71000000
    6"3/8"1/4"-28
    		1/4"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3109A7200000
    12"3/8"1/4"-28
    		1/4"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3109A7300000
     
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