Your cart is empty.
Your cart is empty.Flute countersink and deburring tools. Straight shank, CNC precision cam ground, M35 cobalt steel material, chatter-free cutting action. Made in Great Britain. Set includes 90 degree 5/16", 3/8", 1/2", 5/8" head diameter countersink. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. 90 degree angle.
Customer
2025-08-01 18:06:59
Produces a far superior countersink than other style cutters.I've used it on mild steel, aluminum, plastic.Some people have mentioned that these bits look a little rough, the cutting surfaces are not finished (burrs present). This is true, however, I took some cheapo drill bits (snug fit) and ran them through the holes using only my fingers... cleaned-up nicely with no effort.
aTypicalEngineer808
2025-06-01 12:36:21
These are well made, but it was a little ironic that a tool used for de-burring holes, also need to be de-burred, which I was able to accomplish with a small diamond file (that was the reason for taking off a star). It was odd that all four needed de-burring on non-cutting edge when spinning in the clockwise direction. I plan on using these with a cordless drill, so I wanted to make sure if run in reverse, the hole was uniform (which they are now).
Robert G.
2025-05-05 16:21:13
Hard to find, but the best countersink for metal or wood. makes a clean taper without chattering or tearing, other on a drill press or a hand drill.
Customer
2025-04-19 15:46:39
Keo. Quality. Used the hell out of them. Sharp. Zero flutes are the only countersinks I have or will buy. Best quality cut around
MarshallTown
2024-12-24 16:27:31
Excellent bits for their purpose.
Recommended Products
