Faithfull Professional Cobalt Jobber Drill Bit 4.0mm (Pack of 2)
Professional-grade M35 cobalt drill bits (4.0mm) for tough materials. DIN 388 compliant with split point design.
The Faithfull Professional Cobalt Jobber Drill Bit 4.0mm is engineered for superior performance in demanding industrial applications. Manufactured from M35 HSSE grade steel with 5% cobalt content, these drill bits offer exceptional heat resistance and cutting efficiency, ensuring longer tool life even under heavy-duty use.
Each bit is fully ground and features a 135° non-slip split point, providing precise centring for accurate drilling. Produced in accordance with DIN 388 standards, these bits guarantee high precision tolerances and geometric accuracy for professional results every time.
Key Benefits:
- High-performance cobalt steel composition for durability
- Excellent heat resistance for prolonged use
- Split point design reduces walking and improves accuracy
Applications: Ideal for drilling into tough materials including:
- Alloy steels
- Carbon steels
- Cast iron
- Hardened alloy steels
- Stainless steels
- High-temperature alloys
- Titanium alloy
- High-strength steel
- Carbon fibre composites
Pack Includes:
- Quantity: 2 drill bits
- Diameter: 4.0mm
- Shipped within 0-2 business days
- Shipping to United States: 3-5 business days*
- Free Shipping Included
- Alloy steels
- Carbon steels
- Cast iron
- Hardened alloy steels
- Material: M35 HSSE grade steel with 5% cobalt
- Point Angle: 135° split point
- Standard: DIN 388 compliant
- Diameter: 4.0mm
- Pack Size: 2
- Weight: 28g
Always follow local regulations and product guidance.
Free standard delivery on US mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For defective items, contact us within 14 days for a replacement or refund.
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