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DEWALT

DEWALT Step Drill Bit Set, 3-Piece (DWA1790IR)

  • Based on 1,284 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Aug 5
Order within 4 hours and 25 minutes
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Style: 3 PC Set


Features

  • Titanium Nitride Coated two flute spiral design provides longer life and better chip removal for the DEWALT drill bit set
  • Split point tip of the drill bit increases speed
  • Laser engraved numbers increases step visiblity
  • 1/4-inch hex shank
  • Optimized for impact driver usage

Description

The DEWALT Metal Drill Bit Set features 3 innovative titanium step drill bits to power through a range of applications. Each drill bit is equipped with a split-point tip that helps to increase speed and starts on contact. An innovative double-spiral flute design delivers long life and outstanding chip removal. Laser-engraved numbers helps to increase step visibility. Optimized for impact drivers. Works with rotary drills.

Material: Titanium Nitride Coated


Finish Type: Titanium Nitride


Shank Type: Hex


Brand: DEWALT


Item dimensions L x W x H: 6 x 5 x 0.88 inches


Material: ‎Titanium Nitride Coated


Finish Type: ‎Titanium Nitride


Shank Type: ‎Hex


Brand: ‎DEWALT


Item dimensions L x W x H: ‎6 x 5 x 0.88 inches


Tool Flute Type: ‎Spiral


Point Style: ‎Split Point


Surface Recommendation: ‎Door,Metal,Steel


UPC: ‎885911294102


Unit Count: ‎1.0 Count


Global Trade Identification Number: ‎02


Manufacturer: ‎DeWalt


Number of Pieces: ‎1


Part Number: ‎DWA1790IR


Item Weight: ‎5 ounces


Product Dimensions: ‎6 x 5 x 0.88 inches


Country of Origin: ‎China


Item model number: ‎DWA1790IR


Is Discontinued By Manufacturer: ‎No


Style: ‎3 PC Set


Finish: ‎Titanium Nitride


Item Package Quantity: ‎1


Measurement System: ‎Inch


Included Components: ‎DWA1790IR - 3 Piece Impact Ready Step Drill Bit Set with multiple sizes (1/8"-1/2", 3/16"-1/2", and 3/16"-7/8")


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: August 21, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 5

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Handy drill bits
Works well and worth the money
Reviewed in the United States on July 26, 2025 by Bill
    • A Reliable and Durable Drill Bit Set
The DEWALT Drill Bit Set with titanium nitride coating is a reliable and durable set for any drilling job. The set includes three pieces with sizes ranging from 1/8 inch to 1/2 inch, allowing for versatility in drilling applications. The titanium nitride coating on each bit provides a longer life and better chip removal than other drill bit sets, making it a great choice for both professional and DIY projects. The 135-degree split point design also ensures precise and accurate drilling without the need for a pilot hole. The bits are constructed with heavy-duty materials, ensuring they can withstand the toughest drilling tasks. They are also compatible with a wide range of drilling tools, including cordless drills and impact drivers. Overall, the DEWALT Drill Bit Set is a solid investment for anyone who needs reliable and durable drill bits that can handle a variety of drilling applications. ... show more
Reviewed in the United States on March 12, 2023 by Mike S.
    • Best bits I've ever used
Drilled 22 1/2" holes in my Teske trailer. Still like brand new. Starts like a quality bit then zips right thru to the hole size. Went so fast with the hole I went past the 1/2" mark.
Reviewed in the United States on June 21, 2024 by Randy Knight
    • Nice! Real, Real Nice!
These replaced my Harbor Freight set, one of which broke on me while I was drilling through a standard household electrical junction box of all things. There used to be a DeWalt Impact Ready step bit video on YouTube that showed them drilling through a quarter inch plate like it was nothing. I used one of these to drill through the steel frame on my pickup truck with a Bosch impact driver. I had to drill a couple large holes as I was installing a trailer hitch. I did pre-drill the holes per the installation instructions before using this. It cut that stuff effortlessly. I was amazed at how easy it went through. I've drilled frame steel before with regular drill bits and it ain't easy. It'll make you say "uncle" it's so hard. There are two things {at least for me} that would make the set better. The sizes are a bit difficult to read as they're not engraved very deep and a pouch to store them in would have been nice. I'm glad I have these and would buy them again without hesitation. ... show more
Reviewed in the United States on March 10, 2018 by Tight Wad
    • Prácticas y fiables
Muy buena calidad, no se deterioran como las de otras marcas, las recomiendo
Reviewed in the United States on September 5, 2024 by Tecnico Algarrobo
    • These bits cut true and fast.
I work in hvac cleaning and I do a lot of duct inspection. These bits are far superior to most other ones I have tried. They cut true and fast. I use them daily. If you are looking for superior tools start here as a baseline to judge other products.
Reviewed in the United States on January 2, 2023 by Trent Toves
    • Great kit
I believe the value for money in this kit is clear as there isn't the need to purchase multiple drill bits to work with. I can't say how durable it is but considering that I've used one bit to drill over 40 holes in different metal thickness, I believe it should be able to get to 100 and still be drilling holes in metal smoothly. ... show more
Reviewed in the United States on October 5, 2023 by E. Edwards
    • Top Drill Bit 3 Piece set for DIY'ers
This is my second set of step drill bits which I trust so much in a quality drill bit. My first set of bits are still working, so I ordered these as future back ups. TIP: I recommend never use these bits on high speed mode on your drill, they will only burn out and get dull. Just let the bit do the work and take your time while drilling. ... show more
Reviewed in the United States on April 17, 2023 by Narcel M Hermosura

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