KSEIBI Unibit 3-Piece High-Speed Steel Step Drill Bit Set - for Stainless Steel, Aluminium, Wood

I’ve been using this KSEIBI step drill bit set for about a month now on different home metalworking projects, and I’m really happy with how they’ve held up. I mostly work on DIY repairs in the garage — stuff like fixing brackets, making cleaner holes in sheet metal, and modifying hardware — and these bits have made that way easier.They cut smooth and don’t grab or jump when I start drilling, which is something I’ve had trouble with in cheaper sets. I’ve used them on aluminum, steel, and even some old brackets I wasn’t sure about, and they still feel sharp. For the price, they’ve definitely delivered more than expected — really solid value for the money.Functionality-wise, they hit the mark. The steps are clearly marked, so it’s easy to stop at the right size without over-drilling. The metal feels durable, and they haven’t overheated or dulled quickly, even with frequent use. I haven’t had to sharpen them yet, which says a lot.If you do light to medium-duty metal work at home, this set punches well above its weight. Solid performance and a good buy all around.

These things work great with battery powered equipment such as drills. It’s always better to start with a smaller diameter and work up to the larger ones when you need a larger hole.Really as a quality made product I would recommend these anytime

These things did great going through most of what I used them on, but I'd question the impact rating. I broke a bit in my first set trying to open up a hole on a trailer for a wiring harness. When built they used a torch to blow a hole in the metal. I wanted a nicer rounded hole for passing protective sleeving through. Was using the bit in my impact driver because drill was too long to fit in area. Bit promptly caught and snapped off at the shank.Was still in return window and Amazon or seller was quick to replace. Haven't had any more issues, but also haven't put them into a similar situation.

Never used one of these stepped bits before. Makes holes in thin metal well. Saves a lot of trouble over conventional bits. Enlarges existing holes well, something very difficult with conventional bits. Wished I had one of these years ago. This brand cuts fast. Not sure of its longevity yet but very impressed with how it cuts.

These were exactly what I was looking for! There are so many projects I can work on now because of these drill bits. They are strong and good quality

Never used these kinds of variable bit hole system before. But now that I have used it.. they are great.. You have to use higher speed to keep from trying to "dig" too fast. But after several metal cuts, they have held up great. Good set to have around.

Great drill bits, case is quite nice but I’m not sure it couldn’t be smaller, though the size isn’t terrible it’s not real compact. Fantastic bits and the case isn’t required if space is an issue.I will be ordering a set for my son.

Good quality at a fair price with a very short delivery time.