Best DEWALT Long Length Bits of 2025

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 1 Feb 2025

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Introducing a range of long length bits from the renowned brand DEWALT. These bits offer exceptional durability and precision, making them ideal for a range of DIY and professional applications. With a variety of sizes and shapes available, these bits are designed to fit a wide range of power tools and can handle even the toughest materials. Whether you're a professional tradesperson or a DIY enthusiast, these long length bits are sure to provide you with the performance and reliability you need to get the job done right.

At a Glance: Our Top Picks

DeWalt 12 x 151mm Extreme 2 Metal Drill Bit Cover #TOP 1
DeWalt 12 x 151mm Extreme 2 Metal Drill Bit
ftb score rating icon 9.8
Dewalt DT4909-QZ Cobalt HSS-CO Drill Bit Cover #TOP 2
Dewalt DT4909-QZ Cobalt HSS-CO Drill Bit
ftb score rating icon 9.7
DeWalt 8 Pilot Drill Bits Set, DT7609-XJ Cover #TOP 3
DeWalt 8 Pilot Drill Bits Set, DT7609-XJ
ftb score rating icon 9.5

Top 10 DEWALT Long Length Bits

DeWalt 12 x 151mm Extreme 2 Metal Drill Bit

DT5060-QZ
Multi-colour
12.0 x 151mm
DeWalt 12 x 151mm Extreme 2 Metal Drill Bit Cover
DeWalt DT5060QZ 12 x 151mm Extreme 2 Metal Drill Bit

The DeWalt Extreme 2 Drill Bit features an innovative tapered web that significantly reduces the risk of breakage, ensuring a longer lifespan for your tool. You will appreciate the permanent size markings located above the shank, making it easy to choose the right bit for your project without confusion. This drill bit also creates cleaner, more accurate, and burr-free holes, which is essential for achieving professional-quality results. Additionally, the gold Ferrous Oxide coating prevents overheating, allowing for smooth drilling through sheet or thin materials without the worry of damaging your workpiece.

What We Like
Reduces breakage risk
Easy size identification
Burr-free hole creation
Prevents overheating
#TOP 2

Dewalt DT4909-QZ Cobalt HSS-CO Drill Bit

DT4909-QZ
black/yellow
Dewalt DT4909-QZ Cobalt HSS-CO Drill Bit Cover
Dewalt DT4909-QZ DT4909-QZ-Broca de Cobalto HSS-CO Extreme para Metal 6.5mm

The Dewalt Cobalt Drill Bit is designed for exceptional performance, featuring a strong central core that enhances stability during freehand drilling. This design helps prevent fractures, ensuring a smoother drilling experience. It excels at tackling stainless steel, making it ideal for tougher materials. The size marking is abrasion resistant and positioned outside the clamping range, allowing you to easily read the size even after extended use. Additionally, you will benefit from a 50 percent improvement in drilling speed, making your projects quicker and more efficient.

What We Like
Improved fracture stability
Ideal for stainless steel
Long-lasting size readability
Faster drilling speed
#TOP 3

DeWalt 8 Pilot Drill Bits Set, DT7609-XJ

DT7609-XJ
Silver
No.8
DeWalt 8 Pilot Drill Bits Set, DT7609-XJ Cover
DeWalt 8 Pilot Drill Bits (3 Pieces),DT7609-XJ

The DeWalt Drill Bits are designed for precision drilling with their long length, making them ideal for reaching into tight spaces. The package contains three high-quality bits, ensuring you have the right tools for various tasks. Each bit is crafted for durability, which means you can rely on them for repeated use without compromising performance. With a compact package size of 7.8L x 18.0W x 0.8H centimeters, they are easy to store and transport, providing convenience for both professionals and DIY enthusiasts.

What We Like
High-quality construction
Long length for versatility
Compact and easy to store
Suitable for various tasks
#TOP 4

DeWalt 3 x 61mm Extreme 2 Metal Drill Bit

DT5539-QZ
azul claro
DeWalt 3 x 61mm Extreme 2 Metal Drill Bit Cover
DeWalt DT5539QZ 3 x 61mm Extreme 2 Metal Drill Bit (10 Pieces), DEWDT5539QZ

The DeWalt Extreme 2 Drill Bit is designed for portable drilling of steel, making it ideal for your metalworking projects. The innovative tapered web significantly reduces breakage, ensuring you can work with confidence. You will appreciate the cleaner, more accurate, and burr-free holes it creates, which enhances the overall quality of your work. Additionally, the permanent size markings above the shank make it easy for you to identify the correct drill bit size at a glance, saving you time and effort.

What We Like
Reduces breakage
Burr-free holes
Easy size identification
Suitable for thin materials
#TOP 5

Dewalt Cobalt Drill Bit Set 3.5 x 70mm

DT4903-QZ
Schwarz/Gelb
Dewalt Cobalt Drill Bit Set 3.5 x 70mm Cover
Dewalt dt4903-qz – Cobalt Drill Bit HSS-Co Extreme For Metal 3.5 x 70 mm(set of 2 Pieces)

The Dewalt Cobalt Drill Bits are designed for exceptional performance when drilling into metal. With a model number DT4903-QZ, each bit measures 3.5 x 70 mm, making them ideal for long drilling tasks. The set includes two pieces, ensuring you have a spare when needed. Manufactured in the United States, these drill bits are crafted from high-speed steel with cobalt for increased durability. This means you can enjoy longer wear and improved resistance to heat, which is particularly beneficial when working on tough materials.

What We Like
Durable cobalt construction
Long length for deep drilling
Includes two bits
Ideal for metalwork
Made in the USA
#TOP 6

Dewalt HSS-Co Metal Drill Bit 7 5X109X66 MM

DT4962-QZ
Black/Yellow
Size
Dewalt HSS-Co Metal Drill Bit 7 5X109X66 MM Cover
Dewalt DT4962 Metal Drill Bit HSS-Co 7 5X109X66 MM

The Dewalt Metal Drill Bit is a robust tool designed for metal drilling. Its HSS-Co construction ensures that it is tough and long-lasting, making it perfect for demanding tasks. When you use this bit, you can expect original Dewalt quality, which guarantees reliable performance every time. The long length of 7 5X109X66 MM allows you to reach deeper into materials, providing the convenience you need for various projects. This drill bit is an excellent addition to your toolkit.

What We Like
Tough and durable
Original Dewalt quality
Long length for deeper drilling
Ideal for metal applications
#TOP 7

DeWalt DT6524QZ Multi-Material Drill Bit 10x134mm

DT6524-QZ
Silver
10Mm X 134Mm
DeWalt DT6524QZ Multi-Material Drill Bit 10x134mm Cover
DeWalt DT6524QZ 10 x 134mm Multi-Material Drill Bit

The DeWalt Multi-Material Drill Bit is designed to tackle a variety of materials, including wood, plastics, metal, and masonry. This versatility means you can use it for multiple projects around your home or workshop. With the ability to operate in both rotary and percussion drilling modes, it adapts to your needs, making drilling easier and more efficient. The fully supported carbide head provides faster drilling speeds, which saves you time. Additionally, the non-slip shank ensures that the bit stays securely in the chuck, giving you confidence while you work.

What We Like
Versatile for multiple materials
Fast drilling with carbide head
Non-slip shank for security
Works in rotary and percussion modes
Ideal for corners and edges
#TOP 8

DeWalt DT5039QZ Extreme 2 Metal Drill Bit

DT5039-QZ
Multi
DeWalt DT5039QZ Extreme 2 Metal Drill Bit Cover
DeWalt DT5039QZ 3.2 x 65mm Extreme 2 Metal Drill Bit

The DeWalt Extreme 2 Drill Bit is designed for optimal performance and durability. Its innovative tapered web significantly reduces the risk of breakage, allowing you to drill with confidence. The permanent size markings above the shank make it easy to identify the bit size quickly, saving you time on the job. You'll appreciate the cleaner, more accurate burr-free holes it creates, ensuring a professional finish. Additionally, the gold Ferrous Oxide coating helps prevent overheating during use, making it ideal for drilling through sheet or thin materials.

What We Like
Reduces breakage risk
Easy size identification
Burr-free hole creation
Prevents overheating
Ideal for thin materials
#TOP 9

DeWalt DT5040QZ Extreme 2 Metal Drill Bit

DT5040-QZ
Multi
DeWalt DT5040QZ Extreme 2 Metal Drill Bit Cover
DeWalt DT5040QZ 3.3 x 65mm Extreme 2 Metal Drill Bit

The DeWalt Extreme 2 Drill Bit is designed for efficiency and durability. Its innovative tapered web significantly reduces the risk of breakage, so you can work with confidence. You will also appreciate the permanent size markings above the shank, making it easy to identify the bit size. This drill bit ensures cleaner and more accurate holes, eliminating burrs for a professional finish. Additionally, the gold ferrous oxide coating helps prevent overheating, allowing you to work on sheet or thin materials without worry.

What We Like
Reduces breakage risk
Easy size identification
Creates cleaner holes
Prevents overheating

DEWALT 1/8-Inch Extra Long Black Oxide Drill Bit

DW1602
Black
1/8 inch
DEWALT 1/8-Inch Extra Long Black Oxide Drill Bit Cover
DEWALT DW1602-1/8-Inch by 12-Inch Extra Long Black Oxide Drill Bit

The DEWALT Long Black Oxide Bit is a versatile 1/8x12 inch drill bit designed for ease of use. With a 135-degree split point, it drills on contact and helps prevent walking, ensuring accuracy in your projects. The parabolic flute design enhances chip ejection, making it ideal for both metal and wood applications. Additionally, the black oxide coating increases wear resistance, prolonging the life of the bit and providing you with reliable performance over time.

What We Like
Easy to use
Prevents walking
Improves chip ejection
Greater wear resistance
Versatile for metal and wood
Buying Guide Image
Editor's Notes

During our DEWALT long length bit research, we found 19 DEWALT long length bit products and shortlisted 10 quality products. We collected and analyzed 8,398 customer reviews through our big data system to write the DEWALT long length bits list. We found that most customers choose DEWALT long length bits with an average price of £12.33.

The DEWALT long length bits are available for purchase. The top 10 picks range in price from a low of £4.00 to a high of £16.00, find the one that fits your budget.

Written by
Jennifer Fraser Avatar

Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.