General description 5PCS 6mm Shank 10mm Head Tungsten Carbide Double Cut Rotary Burr Set is designed for woodworking engraving and die grinding. Made from high-quality tungsten steel, these burrs are efficient and durable, making them ideal for processing various metals and non-metals, including hardened steel, marble, jade, and bone. The set includes five rotary burrs that facilitate precise machining and sculpting. Technical specifications Material: Tungsten Carbide Steel Cutting Edge Diameter: 10mm Shank Diameter: 6mm Total Length: 50-60mm Speed: 6000-50000 revolutions per minute Machining hardness: HRA≥85 Usage Cleaning the trim, veining, and weld of joints Finishing all kinds of metal molds Processing turbine passages Chamfering, rounding, and grooving mechanical parts Finishing the inner hole surfaces of machinery parts Other information Includes: 5pcs Carbide Rotary Drill Bit Tool Warm Tips: Use with pneumatic or electric tools, ensuring the speed is generally between