ZELCAN HSS 5PCS Titanium Step Drill Bit Set with Automatic Center Punch for Sheet Metal with Aluminum Case, 50 Sizes in 5 High Speed Multiple Hole Stepped Up Steel Bits for DIY Lovers

Nice stepper drill. I used it to enlarge a hole in a steel residential front door. It resized the hole perfectly for a new viewport. I also used it to drill a hole in an electrical box. Good durability. Good value. Speedy, on time delivery. I like.

I’ve been using this set mainly on sheet metal, and overall the drillability is very good. The bits cut smoothly at a steady speed without needing much force. Sizing is accurate, and it’s easy to stop at the exact hole size you need. The steps are consistent, which makes drilling more controlled and predictable. The bits feel sturdy and don’t flex, and they don’t grab aggressively while drilling, which helps with accuracy and safety. Overall, this is a solid, versatile set that saves time and works well for DIY and general metal work.

Worked great at first, but didn't last as long as I would have liked. It started getting dull making it difficult to continue to use. At first it was nice and quick cutting through thin metal, but after a few holes it got slower and slower. There wasn't a wobble to it, so that was good. I like the size variety, but when the smaller sizes start getting dull, it's harder to use to get to the bigger sizes.

Needed to drill hole in several lids - went ot a big box store (HD) and the cheapest waw $55. This is very similar to what they had at an extremely low price. Works great, no issues and Love the price

The product met all the expectations set by the description and functions flawlessly. It is indeed a very cool and impressive product.

Good product, did just what I needed it to do

This step drill could not get the job done. I bought this tool for one specific purpose, to drill 4 total, one inch holes in a 3/16 thick A500 steel square tube (somewhat mild steel). I did modify the diameter in a circular grinding fixture to remove the largest hole sizes and have a long step at the one inch size. BUT: After drilling a pilot start hole, the cutter worked reasonably well until it got near 1/3 to 5/8 inch diamter, then slowed down considerably . Pleenty of cutting oil and low drill speeds, but it never got near one inch. Part of the problem was I was trying to drill through 3/16 inch thick steel, but this is very mild steel and east to drill. I knew I would be safer with a step drill instead of a reduced shank twist drill, but the step drill lost some of it's titanium coating on the smaller steps before getting to one inch. I had to buy another style hole drill (TCT hole drill), and that drill did the job well.

Iot was what I ordered.... With that said I don't like to Be electronically harassassed for a review. Your Amazon account is fine without my review some people have lives I'm out of the country at this point I shouldn't get 20 emails a day When on vacation asking for a review. Yes I received what I ordered is is great ... Lol it's the same as most on Amazon a china made product that I an get cheaper on Allie express . Does it work yes .. am I Giving a good review yes because it was what it is supposed to be but you shouldn't request feedback especially to spam someone for it .

This tool works well for my project. Creating a perfect circle and easy to install. Will recommend

perforé de l'acier et les forêts ont tenu le coup.

Haven’t used yet but seems to be of high quality

packaging is good, quality is average

¡Está bien! Entrega rápida. Producto de buena calidad.