M35 Four Spiral Flute Step Drill Bit Set 1/8"-1/2" （13 Sizes ）,1/4" Hex Shank Drill, Impact Resistant M35 HSS Unibit Step Drill bit for Stainless Steel, Wood, Aluminum, Plastic

Nice box, it's sharp, it held up to drilling a few holes, it was cheap, it worked. Good to have around, easier than changing regular bits multiple times to step up to a larger hole.

This drill bit has been a fantastic addition to my toolkit. The material handles steel like a champ, cutting through metal smoothly without dulling too quickly. The spiral flute design helps with faster chip removal, which keeps the drilling process clean and efficient. I've used this bit on wood as wel, it performs consistently well. The 1/4" shank fits securely in my impact driver, making it super convenient. Highly recommended

Great product and material. I have already made a few tests on my house work and it is very trustworthy tool. It sharp to different kind of materials, easy to use and save time as you don’t need to be changing to different hole diameters you nedd.

I was opening up a 3/4" hole in 1/4" aluminum to 1". It did the job but it wasn't as clean as I would have liked. Perhaps that was the result of my technique (rotational speed, lubricant etc.)

Spiral Flute M35 Step Drill Bit Set 3/16"-1/2. Very functional spiral flute step drill bit. Very sharp and keeps its edge after multiple uses. Easy to use and to gauge drill depth. Fantastic value for the money. Will buy again and recommend to others.

The biggest one will not cut the hole that I need! When I unboxed them I had a thought that they have been used already. I definitely need a replacement

Great little bit!! As you might expect this tool works great for drilling different size holes without changing bits. Check the sizes you need but if this fits the bill then get it. This one has 5 different sizes. It seems to be really tough and sharp! Slides into my drill with easy and for the money I paid, a deal!

Works amazingly I wonder just how many times I can use it before it dolls but it works.