Dormer A777 Heavy-Duty HSCo Cobalt Jobber Drill Bit 1/8in 65mm
Heavy-duty 1/8in cobalt steel jobber drill bit with aerospace-grade split point for tough materials. 65mm length.
The Dormer A777 Heavy-Duty HSCo Cobalt Jobber Drill Bit is engineered for demanding drilling applications where high temperatures are generated. Made from premium HSCo Cobalt Steel, it offers exceptional durability and heat resistance, particularly suited for tough, high-tensile materials commonly found in aerospace applications.
Features & Benefits
- Heavy-duty 135° split point reduces thrust force required and improves accuracy
- Right-hand spiral thick web flute geometry enables efficient chip removal
- Bronze surface treatment enhances performance and longevity
- Aerospace-grade quality compliant with NAS 907 specification
Point geometry varies by size:
- 0.30mm - 0.95mm: 118° conical point
- 1.00mm - 1.40mm: 135° 4 facet point
- 1.50mm and above: Precision 135° split point
This drill bit complies with DIN 338 RN, BS328, and ISO 235 standards, guaranteeing professional-grade performance for industrial and professional users.
With a working length of 36mm and overall length of 65mm, this 1/8in diameter drill bit provides excellent control in confined spaces while maintaining sufficient drill depth capability.
- Aerospace applications
- High-tensile materials
- Tough metal drilling operations
- Industrial manufacturing
- Material: HSCo Cobalt steel
- Surface Treatment: Bronze
- Flute Geometry: Standard Helix, Right hand spiral, Thick Web
- Point Diameter: 1/8in
- Overall Length: 65mm
- Working Length: 36mm
- Standards: DIN 338 RN / BS328 / ISO 235
- Complies with: NAS 907 Aerospace Specification Type P3 Point
- Weight: 22g
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.
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