Grewin Golden Bull – Type E Rotary Burr · Specialist for Curved Surface Finishing
The Grewin Golden Bull Type E rotary burr features a unique hemispherical design, making it highly specialized for machining concave and convex surfaces as well as smooth transitions. It is widely used in mold manufacturing, jewelry making, and artistic engraving, where complex surface finishing and precise 3D shaping are required. When machining smooth spherical cavities, intricate 3D carvings, or any application demanding perfect curved surfaces, the Type E rotary burr is the professional’s choice.
Key Features:
- Tungsten Carbide Material: Extremely hard, wear- and heat-resistant, long tool life, capable of high-speed cutting of steel, titanium alloys, and other hard materials.
- Wide Application Range: Suitable for metals with hardness ≤ HRC55 (carbon steel, alloy steel, stainless steel, etc.).
- Double-Cut Hemispherical Design: A complete hemispherical cutting head with cross-cut fluting, offering excellent 3D surface machining capability and high material removal rates.
- Professional Performance: Flexible, non-directional operation, ideal for complex 3D modeling, precision spherical finishing, and artistic engraving.
- Premium Qualities: Sharp edges, burr-free finishing, wear- and heat-resistance, with non-standard customization available.
Usage & Maintenance:
- Safety: Always wear safety goggles and cut-resistant gloves to protect against flying debris.
- Regular Cleaning: Remove chips and debris to maintain optimal performance.
- Moderate Pressure: Avoid excessive force to prevent overheating or premature wear; reduce speed when using extended tools.
- Speed Control: Designed for high-speed operation; adjust RPM according to the material being processed.
