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DEWALT Drill Bit Set, 21-Piece, 135 Degree Split Point, 31 Degree Helix, Black Oxide Coated, For Plastic, Wood and Metal (DWA1181)
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Learn more
Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
Material | Blend |
Finish Type | Brushed |
Shank Type | Straight |
Cutting Angle String | 135 Degrees |
Brand | DEWALT |
About this item
- DEWALT 21-pack black oxide twist drill bit set is ideal for general-purpose drilling materials like metal, hardwood, softwood, PVC and fiberglass
- Parabolic flute design increases chip ejection in metal and wood drilling applications
- Black oxide coating helps resist corrosion and increase durability, so your drill bits last longer
- 135° Split-point tips drill on contact and prevents walking on the hard surface you’re working on
- 31° Helix reduces over aggressiveness of true parabolic flute, making it ideal for drilling deep holes
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- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Safer chemicalsMade with chemicals safer for human health and the environment.As certified byThe Nordic Swan Ecolabel
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Nordic Swan Ecolabel is the Nordic's most recognised environmental certification. A product that carries the Nordic Swan Ecolabel complies with product specific environmental, health and quality requirements in all relevant stages of the lifecycle - raw materials, production, usage, re-use and recycling. The requirements are designed to protect environment and health by focusing on biodiversity in forests, land and sea, restriction on hazardous substances, resource efficiency, circular economy and reduction of greenhouse gas emissions.Part ofClimate Pledge Friendly
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byClimatePartner certified
The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reduce emissions.Certification Number743M8TPart ofClimate Pledge Friendly
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Safer chemicalsMade with chemicals safer for human health and the environment.As certified byThe Nordic Swan Ecolabel
Nordic Swan Ecolabel is the Nordic's most recognised environmental certification. A product that carries the Nordic Swan Ecolabel complies with product specific environmental, health and quality requirements in all relevant stages of the lifecycle - raw materials, production, usage, re-use and recycling. The requirements are designed to protect environment and health by focusing on biodiversity in forests, land and sea, restriction on hazardous substances, resource efficiency, circular economy and reduction of greenhouse gas emissions.Manufacturing practicesManufactured using processes that reduce the risk of negative environmental impact.As certified byThe Nordic Swan Ecolabel
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From the manufacturer




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WATCH This Full Review BEFORE You BUY!! (My Experience)World Arena Team
Product information
Material | Blend |
---|---|
Finish Type | Brushed |
Shank Type | Straight |
Cutting Angle String | 135 Degrees |
Brand | DEWALT |
Item dimensions L x W x H | 8.75 x 1.38 x 8.75 inches |
Tool Flute Type | Parabolic |
Point Style | Split Point |
Surface Recommendation | Fiberglass,Metal,Plastic,Pvc,Wood |
Number of Flutes | 2 |
UPC | 885911426749 |
Manufacturer | DEWALT |
Number of Pieces | 21 |
Product Dimensions | 8.75 x 1.38 x 8.75 inches |
Item Weight | 1.1 pounds |
Department | Unisex-Adult |
ASIN | B079VJMH6T |
Country of Origin | China |
Item model number | DWA1181 |
Customer Reviews |
4.8 out of 5 stars |
Best Sellers Rank | #198 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #1 in Jobber Drill Bits |
Is Discontinued By Manufacturer | No |
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DEWALT Drill Bit Set, 21-Piece, 135 Degree Split Point, 31 Degree Helix, Black Oxide Coated, For Plastic, Wood and Metal (DWA1181)
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Product Description
The DEWALT Black & Gold Metal Drill Bits feature a black and gold coating for preventing rust. The tapered web design provides extreme durability to resist breakage. The bits feature a 3-flats shank to reduce spin-out in the chuck. The Black & Gold metal drill bits are made of heavy-duty High Speed Steel for drilling into a variety of materials including plastic, wood, and metal. Each bit features a 135 split point tip design to help reduce walking.
Top Brand: DEWALT
Compare with similar items
This Item DEWALT Drill Bit Set, 21-Piece, 135 Degree Split Point, 31 Degree Helix, Black Oxide Coated, For Plastic, Wood and Metal (DWA1181) | Recommendations | |||||
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | -33% $19.97$19.97 List: $29.99 | -24% $12.99$12.99 List: $16.99 | $43.99$43.99 | -25% $67.06$67.06 List: $89.99 | -42% $28.69$28.69 List: $49.71 | -17% $24.98$24.98 Typical: $29.99 |
Delivery | Get it as soon as Monday, Apr 14 | Get it as soon as Monday, Apr 14 | Get it as soon as Monday, Apr 14 | Get it as soon as Monday, Apr 14 | — | Get it as soon as Monday, Apr 14 |
Customer Ratings | ||||||
Sold By | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com |
material | Blend, Blend, Blend, Blend, Blend | High Speed Steel | Titanium Nitride | High-Speed Steel with Titanium Nitride Coating | Alloy Steel | Titanium |
number of flutes | 2 | — | — | 2 | — | 2 |
shank type | Straight | 3-Flat | Straight | Straight | Straight | Straight |
tool flute type | Parabolic | Spiral | Straight | Spiral | Spiral | Spiral |
finish type | Brushed | Gold | Titanium Nitride | Titanium Nitride | Titanium | Titanium Nitride |
surface suggestion | Fiberglass,Metal,Plastic,Pvc,Wood | Metal,Plastic,Steel,Wood | Metal, Plastic, Wood | Metals,Plastic,Steel,Wood | Metal,Plastic,Steel,Wood | Metal,Metals,Plastic,Steel,Wood |
cutting angle string | 135 degrees | 135 degrees | — | — | 135 degrees | — |
point style | Split Point | Split Point | Pilot Point | Pilot Point | pilot point,split point | Split Point |
Customer reviews
- 5 star4 star3 star2 star1 star5 star86%11%3%0%0%86%
- 5 star4 star3 star2 star1 star4 star86%11%3%0%0%11%
- 5 star4 star3 star2 star1 star3 star86%11%3%0%0%3%
- 5 star4 star3 star2 star1 star2 star86%11%3%0%0%0%
- 5 star4 star3 star2 star1 star1 star86%11%3%0%0%0%
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find this drill bit set to be of excellent quality, with bits that have held up well without breaking or stripping. The set offers good value for money, works well for light household jobs, and features sharp, durable construction. Customers appreciate the variety of sizes, with one customer noting it includes multiples of commonly used sizes. While the bits perform well on metal studs, some customers report they won't drill through mild steel.
AI-generated from the text of customer reviews
Customers find these drill bits to be of good quality, describing them as a solid starter set.
"...For anyone looking for a reliable and high-quality drill bit set, this Dewalt set is a fantastic choice...." Read more
"Great dewalt drill bits. They are extremely durable and stay sharp. You get multiple sizes and they function extremely well...." Read more
"Great buy!" Read more
"Great drill bit set. Love the case. The bits a very sharp and durable." Read more
Customers find these drill bits durable, noting they are solid and haven't broken or stripped during use, with one customer specifically mentioning the thick plexiglass construction.
"...For anyone looking for a reliable and high-quality drill bit set, this Dewalt set is a fantastic choice...." Read more
"Great dewalt drill bits. They are extremely durable and stay sharp. You get multiple sizes and they function extremely well...." Read more
"Great drill bit set. Love the case. The bits a very sharp and durable." Read more
"These drill bits are really tough and last a quite a while, I’ve abused them to no end...." Read more
Customers find these drill bits to be excellent value for money, particularly noting they are worth the investment for both professionals and hobbyists.
"...perform well with various materials and are worth the investment for both professionals and hobbyists." Read more
"very good value" Read more
"...He is a handyman and does repairs. The price was terrific." Read more
"Good value variety of small bits" Read more
Customers find that the drill bits work well, particularly for light household tasks and hand drilling, with one customer noting their effectiveness on hard plastics.
"...these bits on plastic, wood, and metal, and they perform consistently well across all materials...." Read more
"...You get multiple sizes and they function extremely well...." Read more
"...They perform well with various materials and are worth the investment for both professionals and hobbyists." Read more
"Used it on plastic so far and works well. Was able to drill through plastic pottery for water drainage...." Read more
Customers find the drill bits sharp, with one customer noting they cut well.
"Great dewalt drill bits. They are extremely durable and stay sharp. You get multiple sizes and they function extremely well...." Read more
"Great drill bit set. Love the case. The bits a very sharp and durable." Read more
"...This set is a great pick if you need durable, high-quality, sharp bits...." Read more
"...Nice and sharp and complete in a good storage box." Read more
Customers appreciate the variety of sizes in this drill bit set, with one customer noting it includes multiples of frequently used sizes.
"...This 21-piece set covers a wide range of sizes, making it incredibly versatile for various DIY projects...." Read more
"...They are extremely durable and stay sharp. You get multiple sizes and they function extremely well...." Read more
"...The set comes with a nice range of sizes and a sturdy case to keep them organized, which is super handy...." Read more
"This has all the sizes I need for guitar work." Read more
Customers find these drill bits very usable, with one mentioning they are perfect for household jobs.
"...-piece set covers a wide range of sizes, making it incredibly versatile for various DIY projects...." Read more
"Well Made, Very Useful" Read more
"...Quality seems good and I've been able to complete all my tasks so far with these drill bits." Read more
"Great price . Just what I need it. Great tools. Easy to use." Read more
Customers have mixed experiences with the drill bits: some report they work well on metal studs, while others mention they fail to drill through mild steel.
"...They make clean, precise holes without much effort. This set is a great pick if you need durable, high-quality, sharp bits...." Read more
"Insanely durable, and with the hex head drill insert it doesn’t skip and it’s incredibly easy to use...." Read more
"...However, it failed to penetrate hardened steels...." Read more
"Used it on plastic so far and works well. Was able to drill through plastic pottery for water drainage...." Read more
Reviews with images

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Top reviews from the United States
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- Reviewed in the United States on July 14, 2024Color: MultiVerified PurchaseThe Dewalt Drill Bit Set has been an excellent addition to my toolkit. This 21-piece set covers a wide range of sizes, making it incredibly versatile for various DIY projects. I've used these bits on plastic, wood, and metal, and they perform consistently well across all materials. The 135-degree split point design ensures precise starts, reducing the risk of bit walking.
The black oxide coating is a nice touch, providing added durability and a longer lifespan for each bit. One feature I particularly appreciate is the 31-degree helix, which helps with efficient chip removal and keeps the drilling process smooth and quick.
The bits are housed in a sturdy case that keeps them organized and easily accessible. A minor inconvenience is that the case can be a bit tricky to open, but it's a small issue given the quality and performance of the bits.
For anyone looking for a reliable and high-quality drill bit set, this Dewalt set is a fantastic choice. Its precision, durability, and versatility make it a valuable addition to any DIYer's arsenal.
- Reviewed in the United States on December 14, 2024Color: MultiVerified PurchaseGreat dewalt drill bits. They are extremely durable and stay sharp. You get multiple sizes and they function extremely well. These are some my favorite drill bits I’ve owned and make sure to stay stocked if I lose any or one happens to break which typically any that have broken, broke because of me not because of them.
- Reviewed in the United States on March 17, 2025Color: MultiVerified PurchaseGreat buy!
Great buy!
Images in this review
- Reviewed in the United States on February 26, 2025Color: MultiVerified PurchaseGreat drill bit set. Love the case. The bits a very sharp and durable.
- Reviewed in the United States on June 19, 2024Color: MultiVerified PurchaseThese drill bits are really tough and last a quite a while, I’ve abused them to no end. Even after using them as much as I do, they still work great without much wear and tear.
They’re built solidly and fit perfectly in the drill, so they don’t wobble or slip. The set comes with a nice range of sizes and a sturdy case to keep them organized, which is super handy.
They are very sharp and cut through wood, metal, and plastic easily. The coating helps them glide through materials smoothly, so you don’t have to push too hard. They make clean, precise holes without much effort.
This set is a great pick if you need durable, high-quality, sharp bits. They perform well with various materials and are worth the investment for both professionals and hobbyists.
- Reviewed in the United States on March 27, 2025Color: MultiVerified PurchaseExcellent and sturdy long-lasting drill bits. HIGHLY RECOMMENDED.
- Reviewed in the United States on February 25, 2025Color: MultiVerified PurchaseI'm Happy I finally got tired of searching for small drills and decided to breakdown and buy a full drill index . Nice and sharp and complete in a good storage box.
Top reviews from other countries
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Marcos Antônio de AndradeReviewed in Brazil on August 13, 2024
5.0 out of 5 stars Um excelente conjunto de brocas.
Color: MultiVerified PurchaseEu estava acostumado a comprar brocas no depósito de materiais para construção, nossa...essas são muito eficiente e duram três vezes mais que as brocas convencionais. Recomendo ✌️
- Mr MilwaukeeReviewed in the United Kingdom on September 28, 2024
5.0 out of 5 stars Tough drill bits
Color: MultiVerified PurchaseThe drill bits are sharp, durable and cut clean holes in wood, metal and plastics. The case is made of tough polycarbonate and the clear lid makes it easy to see if any bits are missing. Overall a very handy set of imperial size drills.
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Daniel RiveraReviewed in Mexico on November 24, 2024
5.0 out of 5 stars Excelentes brocas por el precio
Color: MultiVerified PurchaseLas brocas tienen muy buena calidad, el filo es bastante duradero para el precio que tienen pensaría que son una ganga, aunque no son la mejor gama hacen y facilitan el trabajo excelente
- Francesco SchisanoReviewed in Australia on March 23, 2025
5.0 out of 5 stars exellent
Color: MultiVerified Purchaseok
- PaulReviewed in the United Kingdom on June 7, 2024
5.0 out of 5 stars Is what it is
Color: MultiVerified PurchaseGreat set in one case.
Issue with all of these, not just DeWalt, is getting the drill bit out and back in without slicing your fingers.