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Your cart is empty.IRWIN High Speed Steel Countersinks feature a precision-ground 82-degree tip that makes them ideal for countersinking into most machinable metals. They're made from industrial grade high speed steel for increased durability and they include a black oxide finish for added corrosion resistance. The five flute design reduces vibration for smoother drilling and extended life. Plus, the 1/4" round shank fits all handheld and stationary drills.
Dennis B
Reviewed in the United States on March 22, 2025
Good quality!
Customer
Reviewed in the United States on February 18, 2025
Great countersinks - they do just what they are advertised to do quickly, smoothly, and with no unevenness or chipping rough edges.
KJ
Reviewed in the United States on February 16, 2025
Amazing Bits great for any project. Easily hide your screws of all standard sizes and shapes.
Arny
Reviewed in Canada on April 10, 2025
Works good on aluminum, not sure how long would last with steel
Debra Baratta
Reviewed in Canada on April 1, 2025
there pretty good ,countersunk into stainless steel
Vincent M.
Reviewed in Canada on June 15, 2024
Good value. Cheaper than retail stores. Wish it came with a carrying case.
Dan Gojs
Reviewed in Canada on May 12, 2024
Use them on aluminum for now and they works fine! Very fast delivery!
wenshao
Reviewed in Canada on March 3, 2024
Drills very clean countersink hole
A...gamer
Reviewed in the United States on October 28, 2024
These countersink work great. Sharp and cut fast.
Customer
Reviewed in Canada on April 5, 2024
Used two already work great
Customer
Reviewed in Canada on July 31, 2023
Seems to work good. Defenitely need lubrication on metals. Gives a smooth finish then.
Vinnieman
Reviewed in the United States on February 10, 2023
These irwin countersink bits are made of good material and are sharp. The sizes are the most common, which is a good selection for a first time buyer as myself. I know Irwin tools are always good quality and well made. So it was an easy decision to purchase these and save at least 40% off compared to other retailers.
Melliott
Reviewed in Canada on December 19, 2021
Seem to be holding sharpness ok after some metal work
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