Dormer A777 HSCo Heavy-Duty Cobalt Jobber Drill Bit, 5mm x 52mm
Dormer A777 cobalt drill bit (5mm x 52mm) for tough materials and aerospace applications. Heavy-duty 135° split point design.
The Dormer A777 HSCo Heavy-Duty Cobalt Jobber Drill Bit is designed for high-performance drilling applications, especially where greater heat is generated during operation. This metric cobalt drill bit features a robust 135° split point, making it ideal for drilling into higher tensile and tougher materials, with particular suitability for aerospace industry applications.
Key Features:
- Material: HSCo Cobalt steel for superior durability and heat resistance.
- Point Geometry:
- 0.30mm to 0.95mm: 118° conical point.
- 1.00mm to 1.40mm: 135° 4-facet point.
- 1.50mm and above: 135° split point (NAS 907 Aerospace Specification type P3 Point).
- Flute Geometry: Standard helix, right-hand spiral, thick web for efficient chip removal.
- Surface Treatment: Bronze finish for reduced friction and extended tool life.
Specifications:
- Tip Diameter: 5.0mm
- Working Length: 52mm
- Overall Length: 86mm
- Compliance: DIN 338 RN / BS328 / ISO 235 standards.
This drill bit is engineered for precision and reliability, even in the most demanding drilling scenarios.
- Drilling high-tensile materials
- Aerospace industry applications
- General heavy-duty metalworking
- Precision drilling in tough alloys
- Material: HSCo Cobalt steel
- Point Angle: 135° split point (for 1.50mm and above)
- Flute Geometry: Standard helix, right-hand spiral, thick web
- Surface Treatment: Bronze
- Working Length: 52mm
- Overall Length: 86mm
- Tip Diameter: 5.0mm
- Weight: 10g
Free standard delivery on Canadian 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 utmost care with your payment and personal details. Our website uses 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 cart 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 ask you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
