Best DEWALT Long Length Bits of 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
Top 10 DEWALT Long Length Bits
DeWalt 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.
Dewalt DT4909-QZ Cobalt HSS-CO Drill Bit
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.
DeWalt 8 Pilot Drill Bits Set, 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.
DeWalt 3 x 61mm Extreme 2 Metal Drill Bit
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.
Dewalt Cobalt Drill Bit Set 3.5 x 70mm
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.
Dewalt HSS-Co Metal Drill Bit 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.
DeWalt DT6524QZ Multi-Material Drill Bit 10x134mm
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.
DeWalt DT5039QZ 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.
DeWalt DT5040QZ 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.
DEWALT 1/8-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.
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.

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.