The 21 best drill bit extension brands

  • 21 brands ranked
  • Ranked by brand visibility

Milwaukee, Alfa Tools and Drill America lead our ranking of 21 drill bit extension brands. Compare what each brand makes, visit its official site, or shop it online.

Drill Bit Extension brands, ranked

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  1. 1

    Milwaukee

    Shockwave impact-rated extensions and Plus-Lok SDS extensions built for heavy site work and impact drivers.

    Top products: Plus-Lok SDS 18" Extension· SHOCKWAVE 6" Impact Duty Magnetic Bit Holder Extension· SHOCKWAVE 3-Pc Socket Adapter Set

    Popularity 10.0/10

  2. 2

    Alfa Tools

    Cutting-tool range covering hole saws and drill bits for wood, metal and masonry work.

    Popularity 8.3/10

  3. 3

    Drill America

    High-speed steel drill bits sold in bulk, suited to portable and industrial drilling.

    Popularity 7.5/10

  4. 4

    Bosch

    Daredevil extensions with hex shanks, a long-reach option for drilling deep through joists.

    Top products: DSBE1012 Daredevil 12" Drill Bit Extension

    Popularity 4.7/10

  5. 5

    Workpro

    Budget-friendly magnetic bit holder extenders in several lengths, good for general home use.

    Top products: Magnetic Drill Screwdriver Bit Holder Extender· Magnetic Quick Release Bit Holders

    Popularity 4.7/10

  6. 6

    DEWALT

    Impact-ready holders and quick-change extensions, a sturdy choice for contractor drilling.

    Top products: Spade Drill Bit Extension· Drill Bit Holder Extension· Quick Change Bit Extension

    Popularity 4.3/10

  7. 7

    Wera

    German-made screwdriver bits and holders with ergonomic grips, favoured by precision mechanics.

    Popularity 3.8/10

  8. 8

    EDiamondTools

    EDiamond Tools is a manufacturer of high-performance grinding wheels, wet core bits, blades, accessories, and other tools. All of the goods available are of the highest quality and produced using the best components available on the market. What distinguishes the company from others is that it has the right RPM for your diamond tools, which causes them to deliver their most extraordinary performance, leaving clients completely satisfied with their purchase.

    Popularity 3.7/10

  9. 9

    Drill Hog

    Aircraft-style extension sets carrying a lifetime warranty, useful for long holes in metal.

    Top products: 12" Aircraft Extension Drill Bit Set

    Popularity 3.5/10

  10. 10

    Lenox

    Lenox creates an incredible range of exquisite presents for all occasions, including tableware, serveware, and unique occasion gifts for weddings, birthdays, anniversaries, and more. They combine the newest fashion trends with their timeless knowledge to provide you with a beautiful...

    Popularity 3.2/10

  11. 11

    Greenlee

    Greenlee's cable-pulling bits have a long spiral flute that clears wood and fish tape through studs fast, mostly bought by electricians.

    Popularity 3.0/10

  12. 12

    FAMAG

    Famag is the oldest and leading manufacturer of drilling and milling tools that are timeless and of a high standard. Over the years, the company has expanded its range of products worldwide and provides tools according to the preference of...

    Popularity 3.0/10

  13. 13

    Ryobi

    Tools are an important part of a worker's life. Their whole life revolves around this equipment which helps in their daily chores. That's why RYOBI Tools brings you to the world of tools and a variety of equipment that can...

    Popularity 2.8/10

  14. 14

    IRWIN TOOLS

    IRWIN TOOLS was established back in 1993. The company is a merger of two companies existing since the 1800s. While IRWIN TOOLS is a company formed much later, the parent companies had already been in existence for over a hundred...

    Popularity 2.5/10

  15. 15

    Eazypower

    Eazypower started in 1985 making screwdriver tips, and its tip range is among the largest in its field. Its drilling products include drill bits, wood drill bits, cobalt and step drills, and screw extractors. Its power tool accessories include dowels,...

    Popularity 2.5/10

  16. 16

    Shdiatool

    Shdiatool manufactures diamond-coated drill bits, core bits, hole saws and drill adapters in China for cutting stone and masonry. The tools are sold as professional-grade equipment, and overseas warehouses help shorten delivery times. Tradespeople who drill and cut hard materials...

    Popularity 2.5/10

  17. 17

    Snappy

    Home - Make it Snappy Tools

    Popularity 2.5/10

  18. 18

    Sutton Tools

    Drill bits, drill tools, screwdrivers and hole cutters are made by Sutton Tools, an Australian company. Its cutting tools are used in demanding industrial sectors, and the company produces threads and gauges as well. The brand's rotary tool accessories are...

    Popularity 2.3/10

  19. 19

    Cal Hawk

    Impact socket sets and drill bits lead the range from Cal Hawk, a tool maker that serves both professionals and beginners. The brand covers hand tools, electric tools, lawn equipment and automotive tools, aiming for equipment that is simple to...

    Popularity 2.2/10

  20. 20

    Klein Tools

    For decades, Klein Tools has provided professional quality tools that offer high performance and durability. Their primary focus is on quality and safety, and they make their products with the best and most durable materials. They are a highly known...

    Popularity 2.0/10

  21. 21

    BLACK+DECKER

    BLACK+DECKER made a name for itself as one of the powerhouses in the tools and cleaning equipment industry. The company designs products for every part of your home to ensure that you have a smooth, functioning, and efficient household. With...

    Popularity 2.0/10

Drill Bit Extension Buying Guide

Drilling holes into various materials is a common task whether you are a DIYer or professional. When a standard drill bit is not enough to reach the depth required or access a confined area, a drill bit extension can come in handy. Drill bit extensions come in different shapes and sizes and can be used with different types of drill bits. In this buying guide, we will discuss everything you need to know about drill bit extensions to help you make an informed buying decision.

Types of Drill Bit Extensions

Drill bit extensions come in various types suitable for different drilling needs. Here are the common types.

Straight Shank Extensions

Straight shank extensions are the most common type, and they are compatible with most drill bits. They have a straight bar design with a hexagonal shaft to allow attachment to a drill chuck. Straight shank extensions come in different lengths and can extend up to 12 inches.

Tapered Shank Extensions

Tapered shank extensions have a cone-shaped design that can fit into a taper drill chuck. They are ideal for drilling large holes, and they reduce wobbling and improve accuracy. Tapered shank extensions can extend up to 18 inches.

Quick-Change Extensions

Quick-change extensions are designed for fast and easy drill bit changes. They have a spring-loaded mechanism that allows you to insert or remove drill bits by hand. Quick-change extensions can come in different lengths and are suitable for various drill bits.

Flexible Extensions

Flexible extensions are perfect for drilling in tight and awkward spaces. They have a flexible steel cable in between the drill bit and the shank that allows you to bend and reach tight areas easily. Flexible extensions come in different lengths, and they are compatible with different drill bits.

Magnetic Extensions

Magnetic extensions have a magnetic tip that holds screws and metal drill bits in place. They are suitable for drilling in metal surfaces and can come in different lengths.

Length of the Drill Bit Extension

The length of the drill bit extension determines the depth of the hole you can drill. Drill bit extensions come in different lengths, and you should choose the length based on your drilling needs.

If you need to drill for plumbing installation or electrical wiring, you might need a longer extension that can reach a depth of 12 inches or more. On the other hand, if you need to drill a hole for screws and other fasteners, a shorter extension of around 3-6 inches can suffice.

It is essential to note that the longer the extension, the more the wobbling and the torque applied to the drill bit. Therefore, it is advisable to use the shortest extension possible to get the job done.

Compatibility with Drill Bits

It is crucial to ensure that the drill bit extension you choose is compatible with the drill bits you have. Different drill bits have different shank sizes, and you need an extension with a matching shank size to use them.

The most common shank sizes are 1/4, 3/8, and 1/2 inches. Some drill bit extensions have a universal shank design that can fit various drill bits sizes, while others have a specific shank size.

It is also essential to note that different drill bits have different materials and hardness. For example, masonry bits are designed for drilling into concrete, while wood bits are suitable for wood and other soft materials. Therefore, you need to choose a drill bit extension that is suitable for the material you want to drill.

Material and Construction

The material and construction of the drill bit extension determine its durability and strength. The most common materials used for drill bit extensions are high-speed steel (HSS), cobalt steel, carbon steel, and titanium-coated HSS.

HSS is the most popular material due to its durability and strength. It is suitable for general drilling applications and can handle a wide range of materials. Cobalt steel is more robust than HSS and is suitable for drilling hard materials such as stainless steel and titanium.

Carbon steel drill bit extensions are cheaper than HSS and cobalt steel but are not as durable. They are best used for occasional drilling applications. Titanium-coated HSS drill bit extensions are more durable than HSS and have a longer life span. They are suitable for heavy-duty drilling applications.

Budget

Drill bit extensions come at different prices, and you should choose one that fits your budget. However, it is essential to note that the cheapest options might not be the best quality and might not last long. On the other hand, the most expensive options might have features that you don't need for your drilling needs.

You should consider your drilling needs, the material and construction, and the compatibility with your drill bits before choosing a drill bit extension that fits your budget.

Conclusion

Drill bit extensions are essential accessories that can make drilling easier and efficient. By choosing the right type, length, compatibility, and material, you can achieve accurate and clean drilling results. We hope this drill bit extension buying guide has helped you choose the right one for your drilling needs.