Dormer A777 HSCo Drill Bit, Cobalt Steel, 12mm x 151mm
Dormer A777 HSCo cobalt drill bit (12mm x 151mm) for high-tensile materials and aerospace applications.
The Dormer A777 HSCo Heavy-Duty Jobber Drill Bit is crafted from high-performance cobalt steel, designed for extreme durability and heat resistance. Its 135° split point geometry ensures efficient penetration and reduced walking, making it ideal for drilling higher tensile, tougher materials commonly found in the aerospace industry.
The drill bit features a standard helix flute geometry with a right-hand spiral and thick web for enhanced strength. The point angle varies by size range, providing optimal performance across different applications. The surface is treated with a bronze finish to improve wear resistance and longevity.
Key Features
- Material: HSCo Cobalt steel for superior heat resistance and durability.
- Point Angle: 135° split point (for sizes 1.50 mm and above) ensures precise drilling with minimal walking.
- Flute Geometry: Standard helix, right-hand spiral, thick web for maximum strength.
- Surface Treatment: Bronze finish enhances wear resistance and extends tool life.
With compliance to DIN 338 RN, BS328, and ISO 235 standards, this drill bit guarantees consistent performance and reliability for professional applications.
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- Shipped within 0-2 business days
- Shipping to United States: 3-5 business days*
- Free Shipping Included
- Drilling higher tensile materials
- Aerospace industry applications
- Industrial metalworking
- Machining tough alloys
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- Material: HSCo Cobalt steel
- Point Angle: 135° split point (for sizes 1.50 mm and above)
- Flute Geometry: Standard helix, right-hand spiral, thick web
- Surface Treatment: Bronze finish
- Standards: Complies with DIN 338 RN, BS328, and ISO 235
- Tip Diameter: 12.0mm
- Working Length: 101mm
- Overall Length: 151mm
- Weight: 102g
Always follow local regulations and product guidance.
Free standard delivery on US mainland orders. Express delivery options and international shipping available at checkout.
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