5Pcs Countersink Drill Bit Set, Premium Drill Bit with 82-Degree, 5 Flutes, Quick-Change Hex Shank, 1/4 Inch to 3/4 Inch Size, Counter Sink Bits for Wood, Metal, Plastic

I have used these countersinks on wood, low carbon steel, aluminum and acrylic. They are performing as good as tooling I have paid 5 times as much for. They are staying sharp, and cut without accumulating cuttings at the flute.

Nice set of counter sinks. Works as expected. Clean edges if you use them before you drill the pilot hole. No storage box because it was cracked and useless. But the holder keeps them organized and I keep them in a dedicated bin so a box isn't needed.

Great buy to replace the ones you already have had and worn down to the nub. Haven't had to use much, but so far, they dont feel built to last. Will update

Work extremely well, throw shavings out of hole while boring it, all 5 sizes cover any depth you'll need to make to hide a screw or bolt. But I got rid of the little rubber holder cause the 5/16's and 3/8s would also fall out from the rubber being stretched. So I love the way they work and ive used them quiet often with no complaints except if i hadn't noticed it i would have lost the 2 biggest ones which sre also ones I use very regularly..

Used them a few times for wood. Works well and I like the different sizes. Good value.

Product worked for its intended purpose. As others have mentioned it does not leave a smooth countersink if you are going fast. It’s almost like it chatters and makes a rough countersink. From my experience I noticed if you go slow it will leave a buttery smooth countersink. Don’t rush it, let the tool do the work. The paint seems very cheap not that looks matter. The tool did exactly what it was intended to do. Definitely does not compare to the Irwin’s I have in my tool box but they work. Overall I would have spent an extra dollar or two and got a better set but these countersinks work you just have to take your time and go slow. If you are on a budget these are perfect. Gave 3 stars because you have to take your time and go pretty slow and the paint they used makes them feel super cheap.

I make cabinets and use wood screws all the time in construction of cabinets, doors, and finish work, these are invaluable to me.

So far so good. Great countersink but time will tell how long they hold up and stay sharp. Good size selection and easy to use