5 pcs Countersink Drill Bit Set，82 Degree Counter Sink， Fit for Sink Holes into Most Machinable Metals, Plywood, Softwood, Hardwood, Fiberglass Plastic, Mild Steel

I like that there are multiple sizes. They work well.

I’ve done multiple wood projects with this set and find these to be a great value - unsure how they’ll stand up to harder materials

I bought these specifically for the hex shank hoping to be able to just use with a screwdriver to quickly ream out for screw heads in drawer pull mounting. Not quite sharp enough for that in maple, but would be in a softer wood. Worked well when I used in a drill as they were designed to be used. Only complaint is the case was scratched up because the person that packed it had two of the bits in the wrong cutouts so they shook around in transit scratching the clear lid. Purely a cosmetic issue, so no big deal.

Work well to counter sink screw heads into various wood projects.

Worked,will it stay sharp? Time will tell.

The box which these were contained within was very sturdy and helps when being stored.The bits were sharp and cut well. I really like the ability to swap them in and out quickly with the quick-disconnect.Overall, I'm very pleased with these pieces and would recommend them.I'm not a high production capacity shop, just a small time fabricator, therein, these are perfect for the price and function.

Works great . Thanks

I tried using the 1/4 inch bit for drilling countersink holes in an aluminum T-Track. It became dull by the third hole. They probably work fine in wood, but aluminum no.