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๐ฉ Drill smarter, faster, and longerโbecause your projects deserve the best!
The KSEIBI Unibit 3-Piece Step Drill Bit Set combines industrial-grade high-speed steel with a jam-free dual-flute design, delivering up to 2X faster drilling and 4X longer bit life. Engineered for precision and versatility, these bits handle stainless steel, aluminum, wood, and plastic with ease, optimized for cordless drills to extend battery life by 50%. A must-have for professionals and DIYers aiming for efficiency and durability in every hole.














| Asin | B0BQQS28Q4 |
| Best Sellers Rank | #40,136 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #59 in Wood Drill Bit Sets #66 in Step Drill Bits |
| Brand Name | KSEIBI |
| Customer Reviews | 4.6 4.6 out of 5 stars (257) 4.6 out of 5 stars |
| Cutting Angle String | 135 degrees |
| Cutting Diameter | 0.88 inches |
| Finish Types | Black Oxide,High-speed Steel,Stainless Steel,Steel |
| Included Components | Step Drill Bit Set |
| Item Highlight | Ready Impact 1/4 inch Shank, High-Speed Steel, Black Oxide M2, For Drilling Stainless Steel, Aluminium, Wood |
| Manufacturer | KSEIBI |
| Material Type | High Speed Steel Stainless Steel |
| Model | 598240 |
| Number Of Flutes | 2 |
| Number Of Pieces | 3 |
| Part Number | 5750 |
| Point Style | Step Point |
| Set Name | 3-Piece Set |
| Shank Type | Hex |
| Surface Recommendation | Metal, Plastic, Wood |
| Tool Flute Type | Spiral |
| Unit Count | 3 Count |
User
Good Quality! Good Deal!
Love these! I am building a shipping container home and I was having a hard time drilling the starter holes to cut out windows and door in the steel. After getting these bits I was able to drill the holes much easier and faster. Quality is A+! The value is good as Ace Hardware wanted $60 for one bit.I love having 3 sizes and a nice storage box.
User
Makes your holes bigger and better
Iโve been using this KSEIBI step drill bit set for about a month now on different home metalworking projects, and Iโm really happy with how theyโve held up. I mostly work on DIY repairs in the garage โ stuff like fixing brackets, making cleaner holes in sheet metal, and modifying hardware โ and these bits have made that way easier.They cut smooth and donโt grab or jump when I start drilling, which is something Iโve had trouble with in cheaper sets. Iโve used them on aluminum, steel, and even some old brackets I wasnโt sure about, and they still feel sharp. For the price, theyโve definitely delivered more than expected โ really solid value for the money.Functionality-wise, they hit the mark. The steps are clearly marked, so itโs easy to stop at the right size without over-drilling. The metal feels durable, and they havenโt overheated or dulled quickly, even with frequent use. I havenโt 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.
User
Unbelievable
The product is the first thing that I have ever bought (I am 58) that has done everything it said it would do and more. It cuts through steel like it wood and it does it so fast that if I wasnโt seeing it with my own eyes I wouldnโt believe itWorth every penny and moreTo the employees who are making these thank you for an awesome product I am sold and will be a customer for life and thanks also to the rest of the companyTruly one happy customer
User
Work good, but not indestructable
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.
User
Good step bits
Have gotten more use out of these than Milwaukee ones. Very sharp and cut nice.
User
They cut fast. They cut truck frame rails, thick heavy steel. They stay sharp even under abuse.
They cut fast. In the video you can see that I am torquing on these bits. I cut 8 9/16 inch holes in truck frame rails, heavy thick steel. I would have burned through ALL of my Snap On drill bits if I abused them like these bits. I put them under as much force as I could, held them to the metal and made them cut. And cut they did. Hole after hole, until I broke two of them. Granted, I was using a come along around my back so I had more force and I was cutting at an angle. You can see it in the video. I will buy more of these. I have never seen a drill bit cut like this without dulling the tip point. They stay sharp even under abuse. They will break if you abuse them too much. It was my fault they broke. I have never owned a drill bit or set of drill bits that are as good as these. Buy them!!!
User
Use all the time!!
Really great and sharp. Husband uses it everyday for work!
User
Support hard work.
Very good for price, not comparable with others brands more premium but still work perfectly
Trustpilot
3 days ago
2 months ago