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4mm Cobalt Drill Bit | Magma Coated | High-Performance Metal | by Wurth
The 4mm Cobalt Drill Bit is engineered for exceptional drilling stability and cutting force, making it ideal for machining hard and tough materials. With a special magma multi-layer coating and 8% cobalt alloy, this drill bit offers up to 9x longer service life and 50% faster cutting speed compared to uncoated options. Perfect for professionals, it ensures optimal centering and less effort during work.
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Product Name/Title: 4mm Cobalt Drill Bit | Magma Coated | High-Performance Metal | by Wurth
Brand: Wurth
SKU: 618940400
Alternatively Known As: Cobalt drill bit, Magma coated drill bit, High-performance metal drill bit, 4mm cobalt drill, Industrial drill bit
Technical Specifications
- Suitable for machine types: Drill, Cordless screwdrivers, Pedestal drilling machine, Milling/drill center
- Material to be processed: Hard and tough materials
- Quality: ZEBRA-Premium
- Standard / drilling depth: CS / 3xD
- Diameter: 4.0 mm
- Length: 75 mm
- Chip flute length: 22 mm
- Shank diameter: 4.0 mm
- Shank style: 3-face shank
- Surface: Magma multilayer coating
- Cutting material: HSCo8 (8% cobalt alloy)
- Type: RH (Right hand)
- Angle of the tip: 135 degrees
- Service life rating: 4 of 4 points
- Drilling speed rating: 3 of 4 points
- Bore hole quality rating: 4 of 4 points
- Versatility rating: 2 of 4 points
- Drilling behaviour rating: 4 of 4 points
- Suitable for drill rating: 4 of 4 points
- Suitable for cordless drills rating: 4 of 4 points
- Suitable for upright drilling machine rating: 4 of 4 points
- Suitable for milling-drilling centre rating: 3 of 4 points
- Self-centring: Yes
- Suitable for tensile strength up to: 1550 N/mm²
- Material sub-groups: Alloyed tempering steels, nitriding steels, tool steels, high-speed steels, cast iron, ductile iron, malleable cast iron, titanium, titanium alloys, Hardox, spring steels, bronze (short and long-chipping), brass (short-chipping)
- Dimensions (H x L x W): 75mm x 75mm x 4mm
- Weight: 0.1 kg
Key Features
- Exceptionally high drilling stability and cutting force
- Up to 9x longer service life and up to 50% faster cutting speed compared to uncoated drill bits
- Up to 2x longer service life compared to conventional coatings
- Heat-resistant up to 800°C
- Extra-high level of resistance to breakage
- Special magma multi-layer coating and 8% cobalt alloy
- Optimal centring during work and less effort required
- No spinning in the drill chuck for faster, more comfortable working
- 3-flat shank from diameter 4 mm protects drill chuck from damage
- Product packaging made from 100% PCR recycled plastic and is 100% recyclable
Professional Installation Requirements
- Use by trained professionals or experienced machinists is recommended to ensure optimal performance and safety.
Applications
- Machining hard and tough materials including alloyed tempering steels, nitriding steels, tool steels, high-speed steels, cast iron, ductile iron, malleable cast iron, titanium and titanium alloys
- Suitable for drilling materials like Hardox, spring steels, bronze, and brass
- Used in excavator shovels, lorry attachments, armour plating, snow ploughs, agricultural machinery
Standards & Compliance
- Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Packaging made from 100% post-consumer recycled plastic
- 100% recyclable packaging reduces environmental impact
Warranty Information
Wurth provides warranty coverage against manufacturing defects as per company policy.
Available Now
The Wurth 618940400 Magma Multi-Layer Coated Cobalt Drill Bit 4mm is available for immediate purchase, ideal for industrial and professional machining applications.
