3PCS Unibit Step Drill Bit Set (1/4"-7/8"), M35 Cobalt, TiAlN Coated for Superior Durability, Spiral Cone Drill for Stainless Steel, Sheet Metal, Aluminum & Plastic

As described… it dies its job, metal plates goes through easily.

Worked nicely on mild steel to enlarge square carriage bolt holes.

Strong,sharp & ideal

It got the job done quickly very fast.

buen producto

Excelente articulo Esas cuchillas son bastante filosas

Works great

I was a little hesitant to try these bits on a recent vehicle project. They worked great! They are very sharp and even after drilling out two grade 8 bolts, they are still very sharp. Value for money: I didn’t want to spend too much money and these seemed like a great price. They outperform my expectations.

Been using these for a few months now.. still sharp after drilling everything from aluminium to stainless steel. Quality is good.

Well presented, protective fitted case.Seemto be reasonable quality. I haven't used them on more than thin plate at the moment. But the do seem to hold up well to general diy use.

Not the best but ok for hard surfaces to drill 👍👍👍

Incredibly sharp, best set of step drills I’ve ever had and I’ve used good branded names

Nice set of stepped taper drills Worth the extra cost for a decent product