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The DEWALT Step Drill Bit (DWA1783IR) features a titanium nitride coating and a two-flute spiral design for enhanced durability and efficient chip removal. Its split-point tip ensures quick starts and faster drilling, while laser-engraved step numbers improve precision. Designed with a 1/4-inch hex shank, it’s optimized for impact drivers, making it a must-have for professionals seeking reliable, high-performance metal drilling.











































| ASIN | B0090IHBL4 |
| Best Sellers Rank | #26,110 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #47 in Step Drill Bits |
| Brand | DEWALT |
| Brand Name | DEWALT |
| Customer Reviews | 4.8 out of 5 stars 413 Reviews |
| Cutting Angle String | 135 degrees |
| Cutting Diameter | 0.5 inches |
| Finish Type | Titanium Nitride |
| Finish Types | Titanium Nitride |
| Global Trade Identification Number | 00885911294065 |
| Included Components | Dewalt - DWA1783IR |
| Item Dimensions | 6 x 2.88 x 0.75 inches |
| Item Type Name | Dewalt - DWA1783IR |
| Item Weight | 4.54 g |
| Manufacturer | DEWALT |
| Material | Titanium Nitride Coated |
| Material Type | Titanium Nitride Coated |
| Minimum Bore Diameter | 0.03 inches |
| Model | DWA1783IR |
| Number of Flutes | 2 |
| Number of Pieces | 1 |
| Part Number | DWA1783IR |
| Point Style | Split Point |
| Set Name | Single Drill Bit |
| Shank Type | Hex |
| Surface Recommendation | Metal |
| Tool Flute Type | Spiral |
| UPC | 885911294065 |
| Unit Count | 1 Count |
J**D
Great bit .. makes short work of putting holes in steel.
I picked up this bit from a recommendation I saw on a YouTube channel which tested various bits like these. I have to say that the findings that the YouTube video stated were right on point with my experience. I needed to drill some holes for in a 1/8" piece of steel I was making some brackets out of and this bit cut through them like butter. Highly recommend using with a drill press though.
M**S
Works!
Works perfectly. Love the DeWalt brand.
A**W
Perfect price on a great step bit
Long lasting easy to use. Spiral cut makes it a little harder to stop at a specific size because it’s almost self feeding but less blow out on the other side of the hole and smoother drilling. If you run these 1/2 speed they last a lot longer than just trying to run them full blast every hole.
A**N
HVAC tech must-have tool for wireless probes
This thing is so good for popping through duct and sheet metal. I’m an HVAC technician and I have to do a lot of airflow testing with probes and this is an amazing little tool to have. As opposed to using standard drill bits that tend to get hot and concave sheet metal, it’s tiny enough to quickly pop through and get bigger holes started long before any real heat buildup. One of my favorite tools in my bag, 5 stars.
Y**I
Very impressed (updated form 5 to 4 stars)
Drills steel as a butter. I never had this bit before, but after I tried it’s a must have for my campervan project. Worth the price. Size is perfect as well. --- UPDATE after about half year and less then 30 holes I down rated it to 4 stars: One step became dull after I drilled steel bed frame. Now every time I drill it stuck on that particular step. Other steps works still like butter. Of course it still much better then cheap junk, but I rarely use it and don't want to pay another $16.
M**L
Good
Use it often, really like the bit.
R**B
I like it quite a bit!
The slow taper makes it easier to get the hole size you want, and makes it possible in thicker material. Can also use to grind out a slotted shape, if needed. Cuts very fast.
T**M
Excellent
A bit pricey but it looks like it will last comparing with the alternative cheaper solutions
A**F
The best
Best step drill bits out there
S**U
From a 2 years ago's buyer
perfect work! using it for all my works
M**N
Excellent
Tough
K**K
Buena broca
Llego rápido, es una broca, dentro de lo que vi es lo mejor que hay para perforar metal.
J**.
Awesome!!!
Works awesome. Cuts through metal with ease. I use it with my 1/4 drive impact and it’s fast!!
Trustpilot
2 weeks ago
1 week ago