3PCS HSS Step Bits, High Speed Steel Step Drill Bits Set - (4-12mm, 4-20mm and 4-32 mm) Cone Drill Bits Hole Cutter for Wood, Stainless Steel, Sheet Metal by SS SHOVAN

Great bit of kit. Used on 5mm thick mild steel. Cutting 8x 10mm holes and 4x 32mm holes and done the job. And still cutting nicely

For the price these are possibly unbeatable. I use these for professional electrical installation work. I only use for thin plastic and unhardend metal materials. Very versatile. They make a lot of holes in metal before blunting for the price point. They are cheap and can take some abuse if you needed to drill something you wouldn't want to blunt expensive cutters on. If you loose then no problem either. Thats why these are my go to atm. Buying expensive is sometimes a waste of money. If you are drilling metal sheet or softer than hardned metal materials these are excellent.

Very good product for the price cuts well, used them on mild steal box. One broke on the tip but that was my fault not keeping the drill straight.

Good quality, strong material, good size, easy to use, compatible with quick fit drill fitting, would highly recommend.

Arrived quickly, worked a treat.

Ok but cobalt ones seem better

Last set has lasted nearly 2 years. I just used them to put 6 6mm holes in 5mm thick steel, cut through it like butter and that's after I've been using them for 2 years. Only just need to buy replacement due to snapping a drill bit on the same steel. Couldn't believe the difference in speed between these and the normal HSS drill bits, I won't use anything else for metal going forwards (unless I need a 5mm hole lol). The elongated hole is the one that had the snapped drill bit in, it took me ages to get it out so ignore that. Only tool used here was the stepper bits

Very good cutters

I needed to make a large hole in a plastic piece on my Vespa to install a USB outlet and the hole required to fit was rather large. A normal drill bit was not going to work in this case, but these step bits did the trick. Very sharp and they easily cut through the plastic and I had a perfect install of my USB port. Care must be used when using these as they are very sharp and you can easily go a bit too far if you're not careful. I recommend.

Macht was es soll - bohrt in Stufen Löcher!

Ottimo set, ottimo prezzo

Sehr gutes stabiles Produkt. Für mich absolut ausreichend!

Rien à signaler avec ce prix. Peut-être pas la meilleure matière mais fonctionne très bien, j'ai testé sur une feuille de métal d'épaisseur d'environ 1mm