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DEWALT Drill Bit Set, 3 Piece, Titanium Nitride Coated, Longer Life and Better Chip Removal (DWA1790IR)

4.8 4.8 out of 5 stars 2,730 ratings
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Amazon's Choice in Jobber Drill Bits by DEWALT

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3 PC Set

Purchase options and add-ons

Material Titanium Nitride Coated
Finish Type Titanium Nitride
Shank Type Hex
Brand DEWALT
Item Dimensions LxWxH 6 x 5 x 0.88 inches

About this item

  • 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
See more product details

Customer ratings by feature

Easy to use
4.7 4.7
Accuracy
4.6 4.6
Durability
4.5 4.5
Longevity
4.4 4.4

Frequently bought together

$64.11
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$89.99 ($3.10/Count)
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DEWALT Drill Bit Set, 3 Piece, Titanium Nitride Coated, Longer Life and Better Chip Removal (DWA1790IR)
DEWALT Drill Bit Set, 3 Piece, Titanium Nitride Coated, Longer Life and Better Chip Removal (DWA1790IR)
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Price-13% $64.11
List:$73.99
$99.99$20.99$29.99$62.48$22.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Monday, Apr 1
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Durability
4.5
4.4
3.9
4.4
Longevity
4.4
4.2
3.8
4.2
Value for money
4.4
4.4
4.2
4.4
Accuracy
4.6
4.7
4.7
Sold By
Amazon.com
Amazon.com
Golden Coulee, LLC
coneve
KSEIBI
Golden Coulee, LLC
material
Titanium Nitride Coated
High Speed Steel
Cobalt
Stainless Steel
High Speed Steel
Cobalt
shank type
Hex
Hex
Hex
Hex
Hex
Straight
tool flute type
Spiral
Spiral
Spiral
Spiral
Spiral
Spiral
finish type
Titanium Nitride
Titanium
Titanium
Black Oxide
surface suggestion
Door,Metal,Steel
Metal, Fi, Stainless Steel, Wood
Aluminum,Metal,Plastic,Stainless Steel,Steel,Wood
Metal; Plastic; Wood
Plastic, Metal, Wood, Fiberglass

From the manufacturer

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Additional Information

Warranty & Support

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DEWALT

DEWALT Drill Bit Set, 3 Piece, Titanium Nitride Coated, Longer Life and Better Chip Removal (DWA1790IR)


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Product 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.

Customer reviews

4.8 out of 5 stars
4.8 out of 5
2,730 global ratings

Customers say

Customers like the performance, speed, quality and design of the drill bits. For example, they mention that it works really well, it drills fast and that it cuts true and fast. Some appreciate the design, saying it's pretty decent. Opinions are mixed on value.

AI-generated from the text of customer reviews

130 customers mention126 positive4 negative

Customers are satisfied with the performance of the drill bits. They mention that the spiral flutes work perfectly, and the tool performs beautifully together. Some say that the tool works great after 60 holes through steel. Overall, most are happy with the quality and performance of these drill bits, and recommend them to others.

"Very nice but, goes through steel very well. Very impressed with the ability of this tool. Definitely will buy again when needed." Read more

"...Performed beautifully together!" Read more

"...removal than other drill bit sets, making it a great choice for both professional and DIY projects...." Read more

"...I know they aren't rated for that thick but they work great...." Read more

129 customers mention129 positive0 negative

Customers like the speed of the drill bits. For example, they mention they cut true and fast, drill completely through in less than 30 seconds, and effortlessly. Some say that the bit is better than other drill bits and makes the job go very quickly.

"...itself as soon as the bit started to turn and it smoothly cut through the plastic without skipping, wandering, or cracking the surrounding material...." Read more

"...This Dewalt bit cut through the steel like butter...." Read more

"...Goes through structural steel so much better and faster than other drill bits that are supposed to be good...." Read more

"Used to put holes in trailer frame for stake brackets. Stayed sharp." Read more

115 customers mention84 positive31 negative

Customers like the quality of the drill bit. They mention it holds up better than Milwaukee or other bits, has a decent life, and goes through structural steel better and faster than other drill bits. They also say it's the fastest cutting and longest lasting step bit they've used in their shop. Overall, customers are satisfied with the quality and performance of this product.

"...The piece is sturdy and precise as could be and it accomplished everything I hoped it would...." Read more

"Very nice but, goes through steel very well. Very impressed with the ability of this tool. Definitely will buy again when needed." Read more

"...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..." Read more

"...though I had to drill a pilot hole to get it started; then it got dull quickly and I struggled to do a couple more holes in my new fire pit ring...." Read more

40 customers mention40 positive0 negative

Customers like the design of the drill bits. For example, they say it's an awesome bit that gets the job done easy and fast. Some say the design is impressive and it'll go through steel very well. Overall, customers are satisfied with the product's design.

"Very nice but, goes through steel very well. Very impressed with the ability of this tool. Definitely will buy again when needed." Read more

"...Great starting bite... great finish at the end.Only step drill I will purchase." Read more

"Very happy." Read more

"...It drilled completely through in less than 30 seconds! Amazing bits. You get what you pay for on these." Read more

28 customers mention20 positive8 negative

Customers like the holes that the drill bit produces. They mention that it makes clean, round holes that require little de-burring. They also say that it's a good bit set for making through holes, and that it cleans out the holes nicely. Customers also say it'll work well for making larger holes.

"...These are nice step drills that are very sharp and make nice round holes...." Read more

"...plus they have their own cool factor. design really does remove material faster...." Read more

"The drilled failed at the neck (high stress point) under mild use. Not recommended" Read more

"...20 1/2" and 5/8" holes so far and they drill fast and leave an extremely clean hole...." Read more

20 customers mention14 positive6 negative

Customers like the size of the drill bits. They say it has a great variety of sizes, fits in their impact drill, and is perfect. They also say it's a versatile set that can be used with cordless drills and impact tools.

"...They are also compatible with a wide range of drilling tools, including cordless drills and impact drivers...." Read more

"...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:..." Read more

"It wasn't big enough for the second job needed it for however I'm sure it will come in handy in the future" Read more

"...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..." Read more

15 customers mention15 positive0 negative

Customers find the drill bit easy to use. They mention it goes through easily, takes less effort to use by hand, and is easier than a hole saw. It also saves time and effort, and works fast.

"...That's not only worked fine but it worked fast and was an easy fix. Wonderful tool. I will be using this for years to come." Read more

"...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...." Read more

"Bit ripped through stainless steel quickly and easily with no signs of wear after." Read more

"...Cuts clean, smooth and easily without having to apply alot of downforce." Read more

60 customers mention41 positive19 negative

Customers are mixed about the value of the drill bit. Some mention that it's worth the price, while others say that it was pricey and not cheap.

"This is the one you want. Sure it's more expensive, but worth every penny...." Read more

"Very very good and a great value" Read more

"...Kinda expensive but if you want something that will last, pay the extra money. I've had these for about 6 months." Read more

"...Did touch the tip in oil before each hole. Well worth the money, and as usual Amazon got it here quick." Read more

Like A Hot Knife Through Butter!
5 Stars
Like A Hot Knife Through Butter!
This drill bit is now one of my favorite tools for drilling custom-sized holes. The piece is sturdy and precise as could be and it accomplished everything I hoped it would. My goal was to drill a hole through a piece of automotive plastic trim to accommodate the installation of an RJ45 jack. I feared it would tear up the plastic and ruin an expensive piece. As it turns out, it seated itself as soon as the bit started to turn and it smoothly cut through the plastic without skipping, wandering, or cracking the surrounding material. I was able to regulate the width of the hole by exerting just the right amount of pressure. I'm very pleased. I highly recommend adding this to your toolbox.
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Top reviews from the United States

Reviewed in the United States on April 14, 2023
Style: 3/16" - 7/8"Verified Purchase
Reviewed in the United States on February 11, 2024
Style: 3/16" - 7/8"Verified Purchase
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5.0 out of 5 stars Like A Hot Knife Through Butter!
Reviewed in the United States on February 11, 2024
This drill bit is now one of my favorite tools for drilling custom-sized holes. The piece is sturdy and precise as could be and it accomplished everything I hoped it would. My goal was to drill a hole through a piece of automotive plastic trim to accommodate the installation of an RJ45 jack. I feared it would tear up the plastic and ruin an expensive piece. As it turns out, it seated itself as soon as the bit started to turn and it smoothly cut through the plastic without skipping, wandering, or cracking the surrounding material. I was able to regulate the width of the hole by exerting just the right amount of pressure. I'm very pleased. I highly recommend adding this to your toolbox.
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Reviewed in the United States on February 12, 2024
Style: 7/8" - 1-1/18"Verified Purchase
Reviewed in the United States on February 18, 2024
Style: 3/16" - 7/8"Verified Purchase
Reviewed in the United States on January 12, 2023
Style: 3-16" - 1/2"Verified Purchase
Customer image
5.0 out of 5 stars Holy cow batman, this thing works great!
Reviewed in the United States on January 12, 2023
I don't know what it's made of, but it is hard and sharp. Goes through structural steel so much better and faster than other drill bits that are supposed to be good. I haven't tried it on stainless steel yet, but the holes it drills into structural steel are comparable to how good individual M35 bits perform on structural steel, and since those same M35 bits will go through stainless, then I'm confident this Dewalt step bit will go through stainless steel just as well. I will have an opportunity to test it on stainless steel in about a week from now and can give an update afterwards.

Update: I picked up 2 other step bits, one Oxmul M35 (5% cobalt) and one Stroton (6% cobalt). The Dewalt similarly outperformed those as well. I drilled stainless steel with the Dewalt and got a surprise---it quickly accelerated in expanding/drilling out the hole once a pilot hole was created. All drilling was done with moderate even pressure at relatively slow speed.
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6 people found this helpful
Report
Reviewed in the United States on November 27, 2022
Style: 3 PC SetVerified Purchase
Reviewed in the United States on November 26, 2023
Style: 3/16" - 7/8"Verified Purchase
Reviewed in the United States on March 12, 2023
Style: 3 PC SetVerified Purchase
One person found this helpful
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Top reviews from other countries

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Toolmanazon
5.0 out of 5 stars Great bits
Reviewed in Canada on March 13, 2024
Style: 3 PC SetVerified Purchase
Ricardo
5.0 out of 5 stars Excelente producto de muy buena calidad
Reviewed in Mexico on November 10, 2022
Style: 3 PC SetVerified Purchase
One person found this helpful
Report
GLT
5.0 out of 5 stars Quality product
Reviewed in Canada on March 7, 2021
Style: 7/8" - 1-1/18"Verified Purchase
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GLT
5.0 out of 5 stars Quality product
Reviewed in Canada on March 7, 2021
The first thing I did was to test the step drill on 1/2" mild steel with a 1/4' pilot hole which saves the end of the step bit from wearing out prematurely from constant use. USE CUTTING FLUID. I used Orapi but there are plenty of other brands available. Oil is NOT a good substitute. Cut holes on a drill press at the lowest speed (mine was 210 rpm). The ratings are higher for the smaller holes but to reach the 1 3/8" hole you'll need to respect the rpm, or risk dulling the blade and ruining the cut. So, by using the low speed for all holes you will be safe. Use a good (6-8 amp) 1/2" hand drill for larger pieces where using a drill press is not possible (quite labor intensive though!). The bucket was made for a vintage Kubota tractor. There were a variety of 1/2", 5/8", 3/4" etc holes. Use a diamond file along the trailing edges to touch up the bit. Of course the titanium will give way but the cutting fluid more than compensates this lost.
The drawback is that the 'steps' are not deep enough. If you cut 1/4" you're fine but as soon as you go into something thicker you will have to drill from both sides. Beyond the 1/2" thickness the outer rims of the holes will necessarily start to feel the grinding away from the next step up -with the 1 3/8" the exception.
Overall, buy quality from a reputable dealer. Highly recommend the product and seller.
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5 people found this helpful
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Shopping Daddy
5.0 out of 5 stars Nice quality
Reviewed in Germany on September 19, 2022
Style: 3/16" - 7/8"Verified Purchase
Tim Rudman
5.0 out of 5 stars fast, cuts well, lasts.
Reviewed in the United Kingdom on August 13, 2021
Style: 3/16" - 7/8"Verified Purchase