Dormer A777 HSCo Heavy-Duty Jobber Drill Bit 3.20mm
Dormer A777 HSCo drill bit (3.20mm) for aerospace & high-tensile materials. 135° split point with bronze coating.
The Dormer A777 HSCo Heavy-Duty Jobber Drill Bit is engineered for demanding drilling applications where high temperatures are encountered. Manufactured from HSCo Cobalt steel, these drill bits feature a heavy-duty 135° split point, making them ideal for drilling tougher, high-tensile materials, especially in the Aerospace Industry. The thick web and standard right-hand helix flute geometry ensure both durability and efficiency.
Key Features:
- 135° split point (for sizes 1.50mm and above) reduces walking and increases precision.
- 118° conical point for smaller sizes (0.30mm - 0.95mm).
- 135° 4-facet point for sizes 1.00mm - 1.40mm.
- Bronze surface treatment enhances wear resistance and heat dissipation.
- Complies with DIN 338 RN / BS328 / ISO 235 standards.
Dimensions:
- Tip Diameter: 3.20mm
- Working Length: 36mm
- Overall Length: 65mm
With superior heat resistance and reduced walking, the Dormer A777 is perfect for professionals who require precision and longevity in heavy-duty drilling applications.
- High-tensile material drilling
- Aerospace industry applications
- Precision drilling tasks
- Heavy-duty industrial use
- Material: HSCo Cobalt steel
- Flute Geometry: Standard Helix, Right-hand spiral, Thick Web
- Point Angle: Varies by size (118° Conical, 135° 4-Facet, 135° Split Point)
- Surface Treatment: Bronze
- Standards: DIN 338 RN / BS328 / ISO 235
- Tip Diameter: 3.20mm
- Working Length: 36mm
- Overall Length: 65mm
- Weight: 75g
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.
Recommended Products
Similar Products
You may like
