Established in 2004, ZHUZHOU JINGFENG CARBIDE TOOLS CO.,LTD is dedicated to R&D, producing and marketing high quality products while providing competitive pricing and fast turnaround on standard and custom-made tungsten carbide helical reamer inserts.To this day, we continue to produce the variety of sizes and specifications, and have become a leader in this project, as well. Brazed tungsten carbide helical inserts are produced by powder metallurgy that starts with thermal shaping process method to form a part. Ensuring more even structure, high overall density, fewer welded crack, good impact resistance and a long life. This special type of brazed tungsten carbide helical inserts with different spiral angles are used in manufacturing finishing milling cutters. There are over a dozen different grades of Tungsten Carbide, enabling us to meet the specific application demands of our customers.