Irwin HSS Cobalt Drill Bit 10502551, 4.5 mm, OL 80 mm, WL 47 mm, Pack of 1
Irwin® 10502551 Hss Cobalt Drill Bit 4.5Mm Ol:80Mm Wl:47Mm
Overall Rating: 4.3 / 5 (average from multiple review sources, as of 2 Oct 2026)
Based on a total of 16,878 customer reviews from independent review platforms.
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Based on a total of 16,878 customer reviews from independent review platforms.
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£1.94
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IRWIN® 10502551 HSS Cobalt Drill Bit 4.5mm OL80mm WL47mm
Overall Rating: 4.7 / 5 (average from multiple review sources, as of 4 Oct 2026)
Based on a total of 17,984 customer reviews from independent review platforms.
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Based on a total of 17,984 customer reviews from independent review platforms.
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£1.98
Irwin HSS Cobalt Drill Bit 4.5mm Pack of 1
Overall Rating: 4.7 / 5 (average from multiple review sources, as of 1 Oct 2026)
Based on a total of 11,438 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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Based on a total of 11,438 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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Irwin HSS Cobalt Drill Bit
Overall Rating: 4.6 / 5 (average from multiple review sources, as of 1 Oct 2026)
Based on a total of 12,773 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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Based on a total of 12,773 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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Irwin 10502551 Hss Cobalt Drill Bit 4.5mm Ol:80mm Wl:47mm Irw10502551
Overall Rating: 3.0 / 5 (average from multiple review sources, as of 4 Oct 2026)
Based on a total of 39,542 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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Based on a total of 39,542 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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IRWIN 10502551 4.5 x 80 mm HSS DIN 388 Cobalt Drill Bit
Overall Rating: 1.5 / 5 (average from multiple review sources, as of 3 Oct 2026)
Based on a total of 70 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 70 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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£5.63
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IRWIN Hss Cobalt Drill Bit 4.5Mm Ol:80Mm Wl:47Mm in Gold Irwin Gold
Overall Rating: 3.1 / 5 (average from multiple review sources, as of 1 Oct 2026)
Based on a total of 77,540 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 77,540 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
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£6.85
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The Irwin Metric HSS Cobalt Drill Bits are perfect for drilling stainless steel and other high alloys. Their 135° split point grinding ensures perfect centring and reduced drilling pressure. An industrial quality ground flute ensures high accuracy drilling and fast removal of chips. The drill bit body is manufactured from high quality HSS steel containing 5% Cobalt (Co). The added 5% Cobalt improves the red hardness (heat resistance) of the drill bit and results in significantly extended life. It has an attractive golden tempered surface finish.Diameter: 4.5mm.Working Length: 47mm.Overall Length: 80mm.PTDIRW10502551
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Product Information
Packaging content
| Carrying case | Yes |
| Number of drill bits | 1 pc(s) |
Features
| DIN compliance | 338 |
| Point angle | 135° |
| Drill bit material | High-Speed Steel (HSS) |
| Shank shape | Cylindrical shank |
| Drill bit type | Twist drill bit |
| Working length | 4.7 cm |
| Suitable for materials | Alloyed steel, Metal, Stainless steel |
| Proper use | Drill |
| Length | 80 mm |
| Drill bit diameter | 4.5 mm |
Product information
At a glance
- Durable Construction: Made from high-speed steel cobalt.
- Precision Size: 4.5mm diameter for accurate holes.
- Versatile Applications: Suitable for various materials.
Note: This text was created with the help of AI.
Unleash Your DIY Potential with Irwin HSS Cobalt Drill Bit
The Irwin HSS Cobalt Drill Bit is the perfect choice for both hobbyists and professionals who take their drilling projects seriously. Whether you're a weekend warrior tackling home renovations or a tradesperson needing a reliable tool for daily use, this drill bit will elevate your experience. It’s designed to handle a variety of materials, making it an essential addition to your collection of Screwdriver & Drill Accessories. With a diameter of 4.5mm and an overall length of 80mm, this tool is versatile enough to meet your needs.
Exceptional Performance and Durability
The Irwin HSS Cobalt Drill Bit stands out thanks to its high-speed steel cobalt construction, which offers enhanced durability, heat resistance, and cutting performance. This means whether you're drilling into hard metals or softer materials, you can expect a smooth and efficient drilling experience. Key features include:
- Heat Resistance: Designed to withstand high temperatures, ensuring longevity even during prolonged use.
- Precision Engineering: The 4.5mm diameter is perfect for creating precise holes, making it easier to work on intricate projects.
- Optimized Design: The bit's geometry allows for faster drilling speeds, reducing the time and effort required on any task.
Stylish and Functional Design
Not only does the Irwin HSS Cobalt Drill Bit excel in performance, but it also boasts a sleek and robust design. The metal finish is not just for looks—it's built to resist wear and tear, providing you with a tool that not only performs well but also looks great in your toolbox. The 47mm working length makes it suitable for various applications, from delicate tasks to heavier-duty jobs, giving you the flexibility you need in any project.
Why Choose Irwin?
When you choose the Irwin HSS Cobalt Drill Bit, you’re investing in quality and reliability. Designed with the user in mind, this drill bit promises to enhance your drilling experience with its durability and efficiency. Here’s why it's worth adding to your toolkit:
- Versatile Use: Capable of drilling through a wide range of materials.
- Cost-Effective: Long-lasting performance means fewer replacements, saving you money in the long run.
- Trusted Brand: Irwin is renowned for its high-quality tools, ensuring you’re getting a product from a respected manufacturer.
Note: This text was created with the help of AI.
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