FYSL 3 Pcs 1/4'' Hex Shank Chamfer Tool Cutter 5 Flute 90 Degree Chamfering Countersink Drill Bit for Wood Plastic Openings(12mm 16mm 19mm)

Great little set, comes in a small box to keep them together. Can't complain really

Exactly as described. Good value for money

At first they were good but it hasn't taken long for them to loose there edge and i have only been using on wood as wellFor the price i suppose they are ok but if your planing on doing lots of countersinking may be not so good

Really blunt, had to lean very hard to make an impression. Went back to using my old countersink which I’ve had forever.

"HSS" it is not, nor is it "titanium coated". The cutting edges were quickly gone, after minimal use; Could work for plastics or soft to medium wood for a while - but even wood seems to dull these pieces rather quickly. Waste of money.

Used these for a project that involved countersinking approx 100 holes in wood. They were all blunt and useless after about 30 odd uses. Cheap and pretty useless.

Very very poor quality. 1st time I've used it. Not even done its job and its unusable . Not buying again

I only needed them for a small 10 hole job. Worked as expected.

Good price have only use once good on alum sheet

Excellent product. Does exactly what it's suppose to.