Dormer A777 HSCo Heavy-Duty Jobber Drill Bit, 3.30mm
Heavy-duty cobalt steel drill bit with 135° split point for aerospace & industrial applications. 3.30mm tip, 36mm working length.
The Dormer A777 HSCo Heavy-Duty Jobber Drill Bit is designed for professionals requiring precision and durability in drilling applications. Featuring a 135° split point, these bits are ideal for high-heat scenarios, making them perfect for drilling into higher tensile, tougher materials, especially in the aerospace industry.
Key Features
- Material: High-speed cobalt steel (HSCo) for enhanced hardness and heat resistance
- Flute Geometry: Standard helix, right-hand spiral with a thick web for improved strength
- Surface Treatment: Bronze finish for reduced friction and longer tool life
- Compliant Standards: DIN 338 RN / BS328 / ISO 235 for quality assurance
Point Specifications
- 0.30 mm - 0.95 mm: 118° conical point
- 1.00 mm - 1.40 mm: 135° 4-facet point
- 1.50 mm and above: 135° split point (NAS 907 Aerospace Specification Type P3 Point)
Dimensions
- Tip Diameter: 3.30 mm
- Working Length: 36 mm
- Overall Length: 65 mm
Whether you're working in industrial manufacturing or aerospace engineering, the Dormer A777 drill bit offers superior performance and longevity for demanding applications.
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.
- High-tensile materials
- Aerospace industry applications
- Industrial metalworking
- Precision drilling tasks
- Material: HSCo Cobalt steel
- Flute Geometry: Standard Helix, Right hand spiral, Thick Web
- Surface Treatment: Bronze
- Compliant Standards: DIN 338 RN / BS328 / ISO 235
- Point Angle (3.30mm): 135° split point (NAS 907 Aerospace Specification)
- Tip Diameter: 3.30mm
- Working Length: 36mm
- Overall Length: 65mm
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.
Similar Products
You may like
