8 Buttons 7 11 12 Degree Tapered Rock Drill Button Bits Rock Drilling Bits

8 Buttons 7 11 12 Degree Tapered Rock Drill Button Bits Rock Drilling Bits. High Drilling Efficiency: Superior to taper chisel and cross bits with longer primary drilling time and higher efficiency. Premium Carbide Inserts: Uses high-grade tungsten carbide from Boart Longyear for high bearing capacity and abrasion resistance. Customizable Specifications: Diameter 30-50mm, 4-9 buttons, and 7/11/12 degree taper angles available to meet specific requirements. Advanced Manufacturing: Manufactured with state-of-the-art CNC machinery and special heat treatment for accurate dimensions. Versatile Applications: Ideal for granite/marble quarrying, gold mines, railways, tunnels, and short-hole blast drilling systems. 48 Years Experience: Factory specialized in drilling tools for over 48 years with advanced technology and experienced service team. Global Export Capability: Exported worldwide to Europe, South America, Southeast Asia, Africa, Russia, and India with strong delivery capacity. Cost-Effective Design: Perfectly matches tapered drill rods with mature welding technology ensuring reliability and cost-effectiveness.