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ZELCAN 10 Sizes Titanium Step Drill Bit, 1/4 to 1-3/8 Inches High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit for DIY Lovers Electrician

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Size: 10 Sizes, 1/4" to 1-3/8"


Style: HSS Step Bit (1/4" to 1-3/8")


Features

  • Includes 10 Step Sizes: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8"
  • Revolutionary Design: Tri-flatted shank fits into power tools chuck securely and eliminates slip; two-flute design clears chips faster and allows particles to escape easily
  • Titanium Coating: Coated with titanium, this step drill set performs well in heat, corrosion and rust resistance
  • Durable HSS Drill Bit: Made of high-speed steel for long-lasting performance, this drill bit easily cuts through iron, aluminum, copper, plastic, wood, and other sheet metals. It also automatically deburrs holes while drilling to maintain a clean bit
  • A Must-Have for Handyman or Professionals: Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal)

Description

Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store We started Zelcan for experienced construction workers, clueless homeowners, and everyone in between. We believe that anyone with a take-charge attitude and a little perseverance can become a diligent DIY handyman. We offer a wide range of essential tools and helpful accessories that enable homeowners and professionals to maintain and maximize their home improvement projects. Zelcan strives to help creators shape the world around them. We build quality tools and hardware for homeowners who finish what they start. Can this bit remove burrs from aluminum tubes? This multipurpose drill bit can drill, ream, and debur to meet your various needs. Can I use it to drill wood? This heavy-duty HSS drill bit boasts 60 HRC hardness to handle a wide range of materials from iron to aluminum, plastics to wood. What thickness of metal can it handle? Our sturdy bit is ideal for metal sheets up to 0.2″ (5 mm) thick. Does it drill 1″ holes? Yes, our step bit provides 10 exact sizes—1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1″, 1-1/8″, 1-1/4″, and 1-3/8″—to perfectly drill to the size you need. Does this bit fit standard drills? The 3/8″ shank works with 3/8″ and 1/2″ electric drills and bench drills, its flattened surface ensuring maximal stability for nonslip operation. HSS Step Bit Large HSS Step Bit M2 HSS Step Bit M35 HSS Step Bit 5-Piece HSS Step Bit Set 6-Piece HSS Step Bit Set 6-Piece HSS Step Bit Set

Material: High Speed Steel (HSS)


Cutting Diameter: 1.38 inches


Finish Type: Steel, Titanium


Shank Type: 3-Flat


Cutting Angle String: 135 degrees


Brand Name: CO-Z


Model: SDB-2017-01


Set Name: ZELCAN 10 Sizes Step Drill Bit Set


Unit Count: 1 Count


Manufacturer: ZELCAN


Part Number: SDB-2017-01


Number of Pieces: 10


Cutting Diameter: 1.38 inches


Minimum Bore Diameter: 0.25 inches


Material Type: High Speed Steel (HSS)


Finish Types: Steel, Titanium


Shank Type: 3-Flat


Surface Recommendation: Wood,Aluminum,Copper,Plastic,Metal,Steel,Iron


Cutting Angle String: 135 degrees


Tool Flute Type: Spiral


Point Style: Split Point


Number of Flutes: 2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: within 30 days

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Good
Set name: ZELCAN 10 Sizes Step Drill Bit Set
“Excellent quality. Much stronger and sharper than other brands I’ve tried. Cuts cleanly and works great. Definitely recommend it
Reviewed in the United States on June 6, 2026 by Jinbo Wu

  • Grade tool any kind of step drilling
Set name: ZELCAN 10 Sizes Step Drill Bit Set
Works very well, but for some reason, I thought it said quarter inch drive could’ve been me. I’m gonna give a five star though it works in my drill fine how long does it last?
Reviewed in the United States on June 20, 2026 by John patterson

  • Perfect for my metal greenhouse cabinet
Set name: ZELCAN 10 Sizes Step Drill Bit Set
I needed to drill a hole in a metal cabinet and my drill just couldn’t muster it with a 2” hole dozer saw and bit. A step drill bit was a game changer, and since this isn’t something I need often, the price of this one was perfect. I was finally able to complete my project. If you’re building an IKEA Milsbo greenhouse cabinet, I highly recommend this bit. I used rubber grommets, sold separately on Amazon to fill the holes and protect cords from the metal edge. ... show more
Reviewed in the United States on January 27, 2025 by MAB

  • Don’t put to much pressure on it or it could dull it faster or brake.
Set name: ZELCAN 10 Sizes Step Drill Bit Set
This item worked great I love it. It makes stuff so much easier. And quicker to get done
Reviewed in the United States on June 23, 2026 by Elijah lamberson

  • perfectly shaped holes in sheet metal or plasic... any size
Set name: ZELCAN 10 Sizes Step Drill Bit Set
I'm now a huge fan of Step Drill Bits! They are awesome. I've used standard drill bits all my life (hardened steel, titanium, or cobalt), but it wasn't until recently that I tried the step drill bits. They are great for drilling through sheet metal or even plastic. I had to drill a large hole to put a gas pedal link rod through with a rubber grommet and it needed to be 1-3/8 inches. I was trying to figure out how to drill it with standard bits and stumbled on this and I gave it a shot. It worked so well that I have bought other sets for smaller holes and they all work great. I also used one for drilling a hole in a plastic battery box to run some heavy guage wire through it and it cut through the plastic like butter and the hole was perfectly shaped. The same went for the 18 guage sheet metal that I was working with. Highly recommend. ... show more
Reviewed in the United States on July 13, 2026 by DonC

  • Much bigger than I expected.
Set name: ZELCAN 10 Sizes Step Drill Bit Set
I'm sure it would've probably been cheaper to go to a local hardware store, but I don't have a lot of free time after work and the convenience is worth the cost for me. For my use, it did what I wanted to do, drilled some big holes, in some small steel pipes. I can't speak on the long-term durability but I don't expect it to be too crazy, considering I only used it to expand 2 holes and it's already lost a lot of its coating. For its size, it's pretty heavy and the material feels extremely solid though. Came well packed, looks good, compatible with my little drill. No complaints! ... show more
Reviewed in the United States on July 21, 2026 by TeamKnapsack

  • This EATS METAL!!!!
Set name: ZELCAN 10 Sizes Step Drill Bit Set
THIS bit EATS METAL...i LOVE it when i get more than what i paid for....it's the PERFECT bit for metal....WORTH IT...
Reviewed in the United States on July 11, 2026 by Jonathan G. Davis

  • It’s OK, but not great
Set name: ZELCAN 10 Sizes Step Drill Bit Set
Starter bit is not sharpen enough. Once it gets started, it does great.
Reviewed in the United States on June 10, 2026 by Daniel

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