RENNIE TOOLS - 3 Piece Large HSS Step Cone Drill Set + Blue Nylon Storage Pouch / 3-12mm 4-12mm 4-20mm / Titanium (TiN) Coated Set Hole Cutter

I have used these to drill stainless steel sink and worked like a charm. Item is sharp and easily controllable and not damaging when going through. Easy to use.

Early first impression review ..smashing, I wanted to cut some various sized holes in plastic electronics boxes and these tools cut very nice neat holes like a knife through butter. and without even needing a pilot hole to start

Generally speaking they do the job. The pouch is useless and may as well go in the bin to be honest - I don't use it. The largest bit isn't that sharp on the smallest size, so you need to pilot with one of the smaller bits which is a bit of a pain. They're generally still sharp but aren't exactly going to outlive you. You get what you pay for o guess so can just buy another set when needed at this price.

I used these to enlarge some holes in a steel door with stripped threads so that I could fit rivnuts. They are good for the price at least for what I wanted. I would always drill a pilot hole first.

Good product that gets used daily at work.Does the job required easily.

Very happy with these been after them for a while. Thanks

Saves changing drill bits when drilling larger holes.

Excellent thx