toolant Gigantic Step Drill Bit(Pro), 1/4" - 2-1/2"(15 Step Size), 1/2" Shank Unibit Step Drill Bit for Metal, Aluminum, Plastic
Condition: New
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Availability:
In Stock.
Arrives
Saturday, Feb 14
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Size: 1/4" - 2-1/2"
Features
- WARRANTY - If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.
- STREAMLINED SIZE TRANSITION - Guarantees true smooth drilling of large holes.
- TiAlN COATING- With 89HRC surface hardness, harder materials can be cut and higher cutting speeds can be achieved.
- HSS STEP DRILL - Prefect for Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets.
- DIMENSION - Includes 15 STEPS SIZE from 1/4" to 2-1/2". Replace a whole set of hole saw. No more suffering from drilling large holes
Material: High Speed Steel (HSS)
Cutting Diameter: 2-1/2 Inches
Finish Type: Titanium Aluminum Nitride
Shank Type: Tri-Flat
Cutting Angle String: 118 Degrees
Package Dimensions : 4.57 x 2.68 x 2.64 inches; 1.65 Pounds
Item model number : TA01029001
Date First Available : January 1, 2024
Manufacturer : AugTouf
Best Sellers Rank: #3,091 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #5 in Step Drill Bits
#5 in Step Drill Bits:
Customer Reviews: 4.4 4.4 out of 5 stars (2,168)
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Feb 14
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 1/8" - 7/8" (3pcs Set)
These relatively inexpensive bits outperform very high dollar carbide machinist bits, and other much more expensive cobalt bits. The cut so fast that the material barely has any chance to get hot which makes them last forever. I've been using them not for several months and I am very sincerely impressed. It's really hard to trust sellers these days. I think I paid 60 bucks to try them in my body shop just as a chance they might work on the lighter sheet metal and they performed so well and lasted so long I have started using them in my machine shop. They are suitable for cutting harder than mild steel, alloys and stainless with no issue whatsoever. I cannot speak highly enough of how surprised and utterly impressed I am with the performance. The most surprising part is the cost! They are the cheapest bits I own and they are also the best drill bits I own! I'm putting together a list to start replacing my professional machinist quality drill bits with these as they go bad and dull. They cost less than sharpening my bits and I have yet to dull any of these as of yet. Very surprised, impressed, and happy with them! I wish more things were like this. I'm happy I took a chance and bought these taking a low risk chance that had really taught me a wonderful lesson.
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Reviewed in the United States on September 12, 2024 by Chisty Rich
Size: 3/16" - 1-3/8"
High value, easy to use, WORKS FANTASTIC. had to drill holes into steel trailer, after using a normal drill bit I purchased this bit. AMAZING. would advise to use drill oil, I just dipped the tip into the bottom I got at Home Depot, keeps the bit cooler, cuts easier, and doesn't get the metal your drilling into as hot. Never used one of these STEP BITS before. DEFINITE MUST. I have had no problems with this brand. cut speed is INCREDIBLE.
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Reviewed in the United States on July 31, 2025 by Amazon Customer
Size: 1/4" - 2-1/2"
This tool definitely helped me with what I needed. I have a smaller stepper drill bit and could not open a big enough hole for the work I was doing to my car. The drill bit is very sturdy and cuts through metal pretty easy.
Reviewed in the United States on November 7, 2025 by Samuel Ayala
Size: 1/4" - 3/4"
Very impressed with its durability and works well with my 1/4 inch impact driver.
Reviewed in the United States on November 16, 2025 by Big D
Size: 1/4" - 1-1/8"
Wow! I bought this with low expectations. I work for Square D, we do bus and retrofills on old gear. This are life savers! My Milwaukee bits overheat, dull and break! All the time. But this set are indestructible. I have never drilled through copper bus with and impact- like drilling through butter. I told my coworker, I had to review this product. Had to make 4 holes on double 1/4 inch copper bus! Pre drilled, Milwaukee was struggling and broke a few! Installed the stepbit, it was probably hungry cuz it ate the copper! Definitely buying again! They are still sharp! And strong!
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Reviewed in the United States on March 9, 2025 by Milton
Size: 1/8" - 1/2"
I am in the automotive electronics industry. I have used different types and brands of step bits for the last 20 years. Most of them turn to garbage after drilling through semi thick metal once or twice. And it ruins the tip. I have only used this new one on types of plastic and twice on sheet metal in the body of a vehicle. So far this bit works better than any I have ever used. It is so sharp you must be careful using it on plastic because it will cut a hole bigger than you want very quickly if you're not careful. I hope I have success in keeping it sharp using it on metal. Here's update on review. I have now used this bit drilling through multiple metal panels on automobiles. I have not had one issue with this product darling or causing me any problems. I don't know how it will do drilling through 8 inch solid steel but through body panels and floor panels on cars it does exceptionally well. . Here's an update from the middle of July 2023. This bit is really rugged. It will drill through 8 inch to quarter inch solid steel on a truck steak bed. I drilled the pilot hole with an 8 inch bit and used it to make the hole up to a 3/8. This bit is extremely Sharp and extremely brittle. I advise spraying silicone on it and keep your drill moving slowly watching it peel the metal. When you're going to that slow speed with this bit it works wonders. It's amazing. But I usually use it for thin metal in vehicles and it has no problem whatsoever. It gets seven Stars as far as I'm concerned. But be careful it is brutal when you are drilling big holes it can hang up and snap.
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Reviewed in the United States on December 23, 2022 by J. Trenthem
Size: 1/4" - 2-1/2"
This is an awesome step drill, Just make sure that you have a heavy duty drill to run it.
Reviewed in the United States on December 19, 2025 by Burt L.
Size: 1/4" - 3/4"
This bad boy eats through metal. Very pleased.
Reviewed in the United States on November 18, 2025 by Amazon Customer