IRWIN HSS Cobalt Drill Bit 4.0mm, 75mm Length, 43mm Working Length
Premium 4.0mm HSS cobalt drill bit for stainless steel & high alloys. 135° split point, 5% cobalt, 75mm length. Ideal for precision drilling.
The IRWIN HSS Cobalt Drill Bit (4.0mm) is engineered for precision drilling of stainless steel and high-alloy materials. It features a 135° split point grinding, ensuring accurate centring and reduced drilling pressure for smoother operation. The industrial-quality ground flute promotes high accuracy and efficient chip removal, making it ideal for demanding drilling tasks.
Crafted from high-speed steel (HSS) with 5% cobalt, this drill bit excels in heat resistance (red hardness), significantly extending its lifespan compared to standard drill bits. The golden tempered surface finish not only enhances durability but also provides an attractive appearance.
Specifications
- Diameter: 4mm
- Working Length: 43mm
- Overall Length: 75mm
- Material: HSS with 5% Cobalt
- Special Feature: 135° split point for reduced walking
- Surface Finish: Golden tempered for corrosion resistance
- Weight: 6 grams
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.
- Drilling stainless steel
- Drilling high-alloy materials
- Precision metalworking
- Industrial applications
- Ask Claude, ChatGPT or Perplexity to find the right tool, with our live prices and stock.
- Get a ready-made basket: one link puts everything in your basket here.
- You always pay securely here: your assistant never sees your card.
- Diameter: 4mm
- Working Length: 43mm
- Overall Length: 75mm
- Material: HSS with 5% Cobalt
- Special Feature: 135° split point for reduced walking
- Surface Finish: Golden tempered
- Weight: 6 grams
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicySecure Transactions
We take the utmost care with your payment and personal details. Our website employs advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookie Policy
Cookies enhance your shopping experience by keeping track of your basket and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Security Warning
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll request you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
You may like
