Best IRWIN Boring Bits of 2025

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 1 Feb 2025

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Introducing Boring Bits by IRWIN, the perfect solution for those who need to drill holes in wood, metal, and plastics. These high-quality drill bits are designed to make drilling faster and easier, with precision and accuracy. Whether you are a professional carpenter, mechanic or DIY enthusiast, the Boring Bits by IRWIN are a reliable choice for all your drilling needs. You can trust the durability of these bits to get the job done, and the range of sizes available ensures that you have the right tool for any task. Upgrade your tool kit with Boring Bits by IRWIN and make your next drilling project a success.

At a Glance: Our Top Picks

IRWIN 1921992 Blue Groove Wood Bit Cover #TOP 1
IRWIN 1921992 Blue Groove Wood Bit
ftb score rating icon 9.8
IRWIN 6X Blue Groove Long Wood Bit Cover #TOP 2
IRWIN 6X Blue Groove Long Wood Bit
ftb score rating icon 9.7
Irwin 10506620 16mm Blue Groove Drill Bit Cover #TOP 3
Irwin 10506620 16mm Blue Groove Drill Bit
ftb score rating icon 9.5

Top 10 IRWIN Boring Bits

IRWIN 1921992 Blue Groove Wood Bit

1921992
Multi-coloured
18 mm x 4-Inch
IRWIN 1921992 Blue Groove Wood Bit Cover
IRWIN 1921992 6X Blue Groove Stubby Wood Bit 18 mm x 4-Inch

The IRWIN Wood Bit is designed specifically for drilling wood, making it an essential tool for your projects. Its tri-flute design ensures faster chip ejection, so you can work more efficiently without interruptions. You will appreciate the clean holes it produces, enhancing the quality of your work. Additionally, the bit is heat treated for durability, ensuring it lasts through numerous tasks. Its stubby shape is perfect for reaching tight spaces, giving you the convenience to tackle jobs in enclosed areas with ease.

What We Like
Ideal for drilling wood
Faster chip ejection
Produces clean holes
Durable heat-treated design
Stubby for tight spaces
#TOP 2

IRWIN 6X Blue Groove Long Wood Bit

1922005
Multi
32 mm x 16-Inch
IRWIN 6X Blue Groove Long Wood Bit Cover
IRWIN 1922005 6X Blue Groove Long Wood Bit 32 mm x 16-Inch

The IRWIN 6X Wood Bit is designed to enhance your drilling experience. Its tri-flute design ensures faster chip ejection, allowing you to work more efficiently. The heat-treated construction offers exceptional durability, making it a reliable choice for tough tasks. You will appreciate the clean holes it produces, which is essential for professional-looking results. Additionally, its extra-long length is perfect for drilling through walls, ceilings, and floors, providing you with the versatility you need for various projects.

What We Like
Fast chip ejection
Durable heat-treated design
Produces clean holes
Extra long for versatility
#TOP 3

Irwin 10506620 16mm Blue Groove Drill Bit

10506620
Silver / Blue
16mm x 165mm
Irwin 10506620 16mm Blue Groove Drill Bit Cover
Irwin 10506620 6X-Speed Blue Groove Wood Drill Bit 16mm, IW10506620

The Irwin 16mm Drill Bit is designed for efficiency and speed. It offers six times faster penetration compared to standard flat bits, making your drilling tasks much quicker. Its fully heat-treated construction enhances durability, ensuring the bit lasts longer even with frequent use. The innovative tri-flute tapered design allows for faster chip ejection, reducing the chances of binding during operation. This means you can work more smoothly and with less interruption.

What We Like
Fast penetration speed
Durable heat-treated design
Effective chip ejection
Reduced binding during use
#TOP 4

Irwin 8 x 200mm Granite Drill Bit

10501908
Multicolored
Irwin 8 x 200mm Granite Drill Bit Cover
Irwin 10501908 8 x 200mm Granite Drill Bit

The Irwin Granite Drill Bit offers a range of features designed to enhance your drilling experience. With rounded cutting edges, you can achieve smoother and more efficient drilling. The bit is designed for accurately sized holes, ensuring precision in your projects. Its straight shank rotary percussion allows for easy use with various power tools. Additionally, the extremely hard and wear-resistant carbide tip ensures durability and longevity, making it ideal for tough materials. This drill bit is perfect for anyone looking to improve their drilling tasks.

What We Like
Rounded cutting edges for smooth drilling
Accurate hole sizing
Compatible with various power tools
Durable carbide tip

Irwin Industrial Tool 2in. Forstner Bit

42932
Irwin Industrial Tool 2in. Forstner Bit Cover
Irwin Industrial Tool 2in. Forstner Wood Boring Bit 42932

The Irwin Forstner Bit is designed for ease of use, making it perfect for both beginners and experienced users. Its high durability ensures that it can withstand rigorous drilling tasks, providing you with long-lasting performance. Manufactured in China, this boring bit maintains quality standards, ensuring reliability in your woodworking projects. With this tool, you can achieve clean and precise holes, enhancing the overall quality of your work.

What We Like
Easy to use
Highly durable
Quality manufacturing
Precise hole drilling

Irwin 49916 1-Inch Solid Center Auger Bit

49916
Silver
#I-100 1"
Irwin 49916 1-Inch Solid Center Auger Bit Cover
Irwin 49916 1-Inch by 7-1/2-Inch Solid Center Auger Bit

The Irwin 49916 Auger Bit is designed for ease of use, making it ideal for both DIY enthusiasts and professionals. Its highly durable construction ensures that you can rely on it for various boring tasks without frequent replacements. Manufactured in China, this bit delivers quality performance. With a size of 1 inch by 7-1/2 inches, it provides the versatility needed for different projects while maintaining efficiency.

What We Like
Easy to use
Highly durable
Versatile size
Reliable performance
Quality construction
#TOP 7

Irwin 3/8-Inch I-100 Auger Bit

49906
Multi
One Size
Irwin 3/8-Inch I-100 Auger Bit Cover
Irwin Industrial Tools 49906 I-100 3/8-Inch Auger Bit

The Irwin I-100 Auger Bit features a solid centre design that enhances rigidity while you bore, ensuring precision in your work. The wide lands help keep the bit straight as it creates holes, while the specially ground flutes funnel chips away from the cutting edge, allowing for a faster and cleaner cut. Additionally, the single-spur cutting edge neatly scribes the circumference, resulting in a smoother finish. With a coarse screw point, this bit offers quick boring capabilities in both hard and soft woods, making it highly convenient for your woodworking projects.

What We Like
Extra rigidity for precise boring
Faster, cleaner cutting action
Smoother hole finishes
Quick boring in various woods
#TOP 8

Irwin Industrial Tools 1-1/2-Inch Self Feed Drill Bit

3046008
Black
Pack of 1
Irwin Industrial Tools 1-1/2-Inch Self Feed Drill Bit Cover
Irwin Industrial Tools 3046008 1-1/2-Inch 3-Cutter Self Feed Drill Bit

The Irwin 1-1/2-Inch Drill Bit is a highly durable option for your drilling needs. Manufactured in China, this bit is designed to withstand tough use, ensuring longevity and reliability during your projects. With package dimensions of 17.78 L x 6.604 H x 10.922 W centimetres, it is compact and easy to store. Weighing just 0.55 pounds, it is lightweight, making it convenient to handle and manoeuvre while working.

What We Like
Highly durable construction
Compact package dimensions
Lightweight and easy to handle
Manufactured for reliability
#TOP 9

IRWIN 3-Cutter Self Feed Drill Bit 2-9/16-Inch

3046013
Black
Pack of 1
IRWIN 3-Cutter Self Feed Drill Bit 2-9/16-Inch Cover
Irwin Tools IRWIN Drill Bit, 3-Cutter, Self Feed, 2-9/16-Inch (3046013)

The IRWIN 3-Cutter Drill Bit is designed for ease of use, making it suitable for both professionals and DIY enthusiasts. Its highly durable construction ensures that it can withstand rigorous drilling tasks, providing you with long-lasting performance. Manufactured in China, this drill bit meets international standards, though it’s important to note that products sold abroad may have different specifications. With this drill bit, you can confidently tackle a variety of boring tasks, making your projects smoother and more efficient.

What We Like
Easy to use
Highly durable
Efficient boring capability
Suitable for professionals and amateurs
#TOP 10

Irwin 42912 3/4-Inch Forstner Bit

42912
Irwin 42912 3/4-Inch Forstner Bit Cover
Irwin 42912 3/4-Inch by 3/8-Inch Shank Forstner Bit

The Irwin Forstner Bit is designed for easy use, making it perfect for both beginners and experienced users. Its high durability ensures that it will withstand the test of time, allowing you to complete multiple projects without worrying about wear and tear. Manufactured in China, this product offers reliable quality that you can trust. With its specific size of 3/4-inch by 3/8-inch shank, you can achieve precision in your boring tasks, helping you achieve professional results with ease.

What We Like
Easy to use
Highly durable
Reliable quality
Precision boring
Buying Guide Image
Editor's Notes

During our IRWIN boring bit research, we found 12 IRWIN boring bit products and shortlisted 10 quality products. We collected and analyzed 7,612 customer reviews through our big data system to write the IRWIN boring bits list. We found that most customers choose IRWIN boring bits with an average price of £17.05.

The IRWIN boring bits are available for purchase. The top 10 picks range in price from a low of £4.00 to a high of £63.00, find the one that fits your budget. The seller of top 1 product has received honest feedback from 1,507 consumers with an average rating of 4.8.

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.