Best Twist Extra Long Drill Bits of 2026

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 5 Feb 2026

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Twist Extra Long Drill Bits are a type of drill bit that is designed to reach deep and narrow spaces that regular drill bits cannot access. These bits are made with high-speed steel and are available in various sizes and lengths to accommodate different drilling needs. They are perfect for drilling through wood, metal, and plastic materials, making them a versatile tool for DIY enthusiasts and professionals alike. With their extra length, users can access tight spaces and drill deeper holes without having to constantly reposition the drill. Twist Extra Long Drill Bits are a reliable and efficient addition to any tool collection.

At a Glance: Our Top Picks

sourcing map HSS Extra Long Drill Bits Cover #TOP 1
sourcing map HSS Extra Long Drill Bits
ftb score rating icon 9.9
sourcing map HSS Extra Long Twist Drill Bits Cover #TOP 2
sourcing map HSS Extra Long Twist Drill Bits
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sourcing map 10mm Extra Long Drill Bit Cover #TOP 3
sourcing map 10mm Extra Long Drill Bit
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Top 10 Twist Extra Long Drill Bits

sourcing map HSS Extra Long Drill Bits

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sourcing map HSS Extra Long Drill Bits Cover
sourcing map HSS(High Speed Steel) Extra Long Twist Drill Bits, 6mm Drill Diameter 300mm Length for Hardened Metal Woodwork Plastic Aluminum Alloy 2 Pcs

The sourcing map Extra Long Bits are designed for precision and durability. With a 6mm diameter and a length of 300mm, these high-speed steel drill bits are perfect for various materials including non-ferrous metals and hard plastics. Their twisted design enhances cutting accuracy and helps prevent displacement during use, making drilling easier and faster. Additionally, the robust HSS construction ensures a longer drilling life, giving you reliable performance for both professional and DIY projects.

What We Like
Long-lasting high-speed steel
Improved cutting accuracy
Suitable for various materials
Avoids drill bit displacement
Convenient for DIY and professionals

sourcing map HSS Extra Long Twist Drill Bits

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sourcing map HSS Extra Long Twist Drill Bits Cover
sourcing map HSS(High Speed Steel) Extra Long Twist Drill Bits, 4mm Drill Diameter 160mm Length for Hardened Metal Woodwork Plastic Aluminum Alloy 2 Pcs

The sourcing map Twist Drill Bits are designed for precision and durability. With a diameter of 4mm and a length of 160mm, these high-speed steel bits are ideal for drilling through non-ferrous metals, hard plastics, and more. Their twisted design enhances cutting accuracy, ensuring the drill bit stays centred and reduces displacement during use. Additionally, the high strength and hardness of the material contribute to a longer drilling life, making these bits a reliable choice for both professional and DIY projects.

What We Like
High-speed steel construction
Improved cutting accuracy
Suitable for various materials
Longer drilling life
Works with multiple drill types

sourcing map 10mm Extra Long Drill Bit

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sourcing map 10mm Extra Long Drill Bit Cover
sourcing map 10mm Twist Drill Bits, High-Speed Steel Straight Shank Extra Long Drill Bit 300mm Length for Wood Plastic Aluminum

The sourcing map Drill Bit is designed for versatility and efficiency. With a 10mm diameter and an impressive length of 300mm, it can reach tight spaces that regular drill bits may struggle with. Made from high-speed steel, it offers exceptional hardness and durability, ensuring a long service life. The twisted design enhances cutting speed and allows for self-centering, which means you can drill with precision and ease. This feature also helps to quickly remove chips, leaving you with smooth holes in various materials.

What We Like
High-speed steel construction
Extended length for hard-to-reach areas
Twisted design for efficient drilling
Self-centering split point tip

sourcing map HSS Extra Long Twist Drill Bits

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6x200mm
sourcing map HSS Extra Long Twist Drill Bits Cover
sourcing map HSS(High Speed Steel) Extra Long Twist Drill Bits, 6mm Drill Diameter 200mm Length for Hardened Metal Woodwork Plastic Aluminum Alloy 2 Pcs

The sourcing map Twist Drill Bits are designed for precision and durability. Their high-speed steel construction ensures a longer drilling life, making them reliable for heavy use. With a twisted design, the drill bits improve cutting accuracy by centring the tip, reducing the risk of displacement during work. This feature also aids in faster removal of debris, enhancing your efficiency. Suitable for various materials, including non-ferrous metals and hard plastics, these bits are ideal for both professional and DIY projects.

What We Like
Durable high-speed steel material
Improved cutting accuracy
Efficient debris removal
Versatile for multiple materials
Suitable for various drilling equipment
#TOP 5

sourcing map Extra Long Twist Drill Bits

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sourcing map Extra Long Twist Drill Bits Cover
sourcing map HSS(High Speed Steel) Extra Long Twist Drill Bits, 3mm Drill Diameter 160mm Length for Hardened Metal Woodwork Plastic Aluminum Alloy 2 Pcs

The sourcing map Twist Drill Bits are crafted from high-speed steel, ensuring a longer lifespan and greater durability. Their twisted design enhances cutting accuracy, allowing you to centre the tip for precise drilling. This feature also helps in removing debris more effectively, making your drilling process smoother. With a diameter of 3mm and a length of 160mm, these bits are perfect for working with non-ferrous metals and hard plastics, providing versatility for both professional and DIY applications.

What We Like
Durable high-speed steel construction
Improved cutting accuracy
Effective debris removal
Versatile for various materials

Yosoo 4mm Extra Long Drill Bit for Wood and Metal

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Yosoo 4mm Extra Long Drill Bit for Wood and Metal Cover
4mm Extra Long Drill Bit, HSS Extra Long 200mm Twist Drill Bit Straight Shank Auger Drill for Wood, Aluminum, Plastic, etc

The Yosoo Extra Long Drill Bit is designed for a wide range of materials, including wood, aluminium, and plastic. Its high-speed steel construction ensures durability, making your drilling tasks easier and quicker. The straight shank also enhances compatibility with various electric drills and machines. Additionally, the deep spiral groove efficiently removes chips and coolant, keeping your workspace clean and improving performance. This drill bit is a practical choice for anyone needing to make precise holes with ease.

What We Like
Wide application for various materials
Durable high-speed steel construction
Compatible with many drills
Efficient chip removal design
Easy to operate
#TOP 7

sourcing map HSS Extra Long Drill Bits

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sourcing map HSS Extra Long Drill Bits Cover
sourcing map HSS(High Speed Steel) Extra Long Twist Drill Bits, 4mm Drill Diameter 160mm Length for Hardened Metal Woodwork Plastic Aluminum Alloy 6 Pcs

The sourcing map Extra Long Bits are designed for precision drilling in various materials, including non-ferrous metals and hard plastics. With a diameter of 4mm and a length of 160mm, these high-speed steel drill bits ensure durability and longer drilling life. Their twisted design enhances cutting accuracy, allowing you to centre the tip effectively while reducing debris build-up. Ideal for both professional and DIY projects, these bits are compatible with a range of drilling equipment, ensuring versatility in your tasks.

What We Like
Durable high-speed steel construction
Improved cutting accuracy
Versatile for various materials
Compatible with multiple drill types
Longer drilling life
#TOP 8

sourcing map HSS Extra Long Twist Drill Bits

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5x300mm
sourcing map HSS Extra Long Twist Drill Bits Cover
sourcing map HSS(High Speed Steel) Extra Long Twist Drill Bits, 5mm Drill Diameter 300mm Length for Hardened Metal Woodwork Plastic Aluminum Alloy 2 Pcs

Features
[Strength And Hardness]- Made Of High-Speed Steel. HSS(High Speed Steel) Enables The Drill Body Harder And Can Keep A Longer Drilling Life.
[Specifications]- Twist Drill Bits Diameter: 5mm / 0.2-Inch; Drill Bit Length:200mm / 7.87-Inch; Shank Diameter: 5mm / 0.2-Inch; Total Length: 300mm / 11.81-Inch; 2 X Straight Shank Twist Drill Bit
[Twisted Design]- With The Twisted Design, It Can Improve Cutting Accuracy By Centering The Tip. It Can Avoid Displacement Of The Drill Bit During Work, And At The Same Time Remove Debris And Particles Faster And Easier.
[Professional And DIY Use]- Suitable For Processing Non-Ferrous Metals, Such As Copper And Aluminum, And Also Suitable For Hard Plastics. When It Cannot Penetrate, Try To Adjust The RPM. Suitable For Electric Hand Drill, Bench Drill And Machine Tool Equipment.
[Note]- Please Keep Cool And Gentle Using, The Working Life Of The Twist Drill Bits Can Be Largely Prolonged By Proper Usage.
#TOP 9

sourcing map HSS Extra Long 8mm Twist Drill Bits

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sourcing map HSS Extra Long 8mm Twist Drill Bits Cover
sourcing map HSS(High Speed Steel) Extra Long Twist Drill Bits, 8mm Drill Diameter 200mm Length for Hardened Metal Woodwork Plastic Aluminum Alloy 2 Pcs

The sourcing map HSS Drill Bits are made from high-speed steel, which makes them harder and extends their drilling life, so you get reliable performance over time. Their 8mm diameter and 200mm length make them perfect for working on materials like hardened metal, wood, plastic, and aluminium alloys. The twisted design centres the tip for better cutting accuracy and helps you avoid drill displacement. Plus, it quickly clears debris, making your work smoother and more efficient. These bits are suitable for both professional and DIY projects, especially with non-ferrous metals and hard plastics.

What We Like
Durable high-speed steel
Accurate twisted tip design
Suitable for various materials
Extra-long 200mm length
#TOP 10

sourcing map 6mm Extra Long Drill Bit

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sourcing map 6mm Extra Long Drill Bit Cover
sourcing map 6mm Twist Drill Bits, High-Speed Steel Straight Shank Extra Long Drill Bit 300mm Length for Wood Plastic Aluminum

The sourcing map Extra Long Drill features a 6mm diameter and a total length of 300mm, making it ideal for accessing hard-to-reach areas that standard drills cannot. Made from high-speed steel, it offers excellent durability and heat resistance, ensuring a long service life. The split point tip and twisted design enhance cutting speed and help the drill self-centre, preventing movement during use. With its efficient chip removal, you can achieve smooth holes with ease, making your drilling tasks more convenient.

What We Like
High-speed steel construction
Extended length for difficult access
Self-centering for precision
Efficient chip removal
Durable and long-lasting
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the largest twist drill available?

Number drill bit gauge sizes range from size 80 (the smallest) to size 1 (the largest) followed by letter gauge size A (the smallest) to size Z (the largest). Although the ASME B94. 11M twist drill standard, for example, lists sizes as small as size 97, sizes smaller than 80 are rarely encountered in practice.

2. What are long drill bits called?

A unibit (often called a step drill bit) is a roughly conical bit with a stairstep profile. Due to its design, a single bit can be used for drilling a wide range of hole sizes. Some bits come to a point and are thus self-starting. The larger-size bits have blunt tips and are used for hole enlarging.

3. What is the longest auger bit?

Compared to other types of drill bit, auger bits can be considered to be quite long. The shortest auger bit commonly found is 200mm (8″) long. The longest is 600mm, which equates to 24″ or 2 feet! These can easily be used to drill through wall studs, tree stumps or thick pieces of timber.

Editor's Notes

During our twist extra long drill bit research, we found 306 twist extra long drill bit products and shortlisted 10 quality products. We collected and analyzed 6,067 customer reviews through our big data system to write the twist extra long drill bits list. We found that most customers choose twist extra long drill bits with an average price of £8.05.

The twist extra long drill bits are available for purchase. We have researched hundreds of brands and picked the top brands of twist extra long drill bits, including sourcing map, Yosoo Health Gear.

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.