Trade Discount 21%
Cobalt Drill Bit | Magma Coated | High-Speed Steel | 4.2 mm Diameter | by Wurth
The Cobalt Drill Bit features a magma multilayer coating and high-speed steel with 8% cobalt, ensuring exceptional drilling stability and cutting force. Ideal for tough materials like titanium and tool steels, this drill bit offers up to 9x longer service life and 50% faster cutting speed compared to uncoated options. Perfect for industrial applications, it guarantees optimal centering and minimal effort during use.
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Technical Specifications
- Diameter: 4.2 mm
- Length: 75 mm
- Chip flute length: 22 mm
- Shank diameter: 4.2 mm
- Shank style: 3-face shank
- Surface coating: Magma multilayer coating
- Cutting material: HSCo8 (High-Speed Steel with 8% Cobalt)
- Tip angle: 135 degrees
- Suitable for tensile strength up to 1550 N/mm²
- Self-centring: Yes
- Suitable for machine types: Drill, Cordless screwdrivers, Pedestal drilling machine, Milling/drill center
- Service life rating: 4/4 points
- Drilling speed rating: 3/4 points
- Bore hole quality rating: 4/4 points
- Versatility rating: 2/4 points
- Drilling behaviour rating: 4/4 points
- Suitable for drills, cordless drills, upright drilling machines, milling-drilling centres
- Dimensions (H x L x W): 75mm x 75mm x 4mm
- Weight: 0.1 kg
Key Features
- Exceptionally high drilling stability and cutting force with up to 9x longer service life and 50% faster cutting speed compared to uncoated drill bits.
- Extra-high resistance to breakage and heat-resistant up to 800°C.
- Special magma multi-layer coating combined with 8% cobalt alloy for enhanced durability.
- Optimal centring during work with minimal effort required to loosen and tighten the drill chuck.
- 3-flat shank design from diameter 4 mm to prevent spinning in the drill chuck and ensure optimal power transmission.
- Product packaging made from 100% PCR recycled plastic and is fully recyclable.
Professional Installation Requirements
- No professional installation required; suitable for use with standard drilling machines and cordless drills by trained operators.
Applications
- Suitable for drilling hard and tough materials including conventional steels, titanium, Hardox, alloyed tempering steels, nitriding steels, tool steels, high-speed steels, cast iron, ductile iron, malleable cast iron, spring steels, bronze, and brass.
- Ideal for use in excavator shovels, lorry attachments, armour plating, snow ploughs, agricultural machinery, and other heavy-duty industrial applications requiring long service life.
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Packaging made from 100% post-consumer recycled plastic and is 100% recyclable, reducing environmental impact.
Warranty Information
Wurth provides a warranty against manufacturing defects; please refer to Wurth's official warranty policy for details.
Available Now
The Wurth Magma Multi-Layer Coated 8% Cobalt Alloy Drill Bit is available for immediate purchase. Ideal for industrial and heavy-duty machining applications requiring high durability and precision.
