tungsten carbide rotary burrs metal working cutters rotary bit Application Cemented carbide rotary file has the following characteristics:1. Long service life, 10 times longer than the durability of high-speed steel tools, more than 200 times longer than the durability of alumina grinding wheel.2. Easy to use, safe and reliable, can reduce labor intensity, improve the working environment.3. The economic benefit is greatly improved, and the comprehensive processing cost can be reduced by dozens of times. Product name mining drill tools Material Tungsten carbide Grade YG7/YK15... Grain size 0.6-0.16μm Applications Metal turning, milling, cutting grooves, thread turning and other fields Product features Wear resistant, in stock Packing method Each product in an individual packing, about 20PCS in one cartoon. Cemented carbide can b…