
89mm T45 Tungsten Carbide Threaded Button Drill Bits. Spherical Tooth Design: Ensures uniform force distribution and high-efficiency rock breaking. High Wear Resistance: Forged from tungsten carbide alloy with 30% improved wear resistance. Optimized Spiral Groove: Increases slag discharge channel area for fast and smooth removal. High Drilling Efficiency: Efficiency is over 35% higher than ordinary cross and single chisel bits. Diverse Alloy Options: Available with 4, 7, or 9 alloy heads in Yg8 or Yg11 grades. Versatile Applications: Suitable for blast furnaces, mining, water conservancy, and metal drilling. ISO 14001 Certified: Manufactured in certified workshops following national quality standards. Strong Impact Resistance: Adapts to harsh conditions like high temperature and heavy loads.