DHD 5'cir High Air Pressure Drill Bit for Quarrying

DHD 5'cir High Air Pressure Drill Bit for Quarrying. Premium Material Composition: Made from 23crni3moa and 25SiMnCrNi2MoVA nickel-alloy steel for high durability. High-Grade Carbide Buttons: Uses YK 05 tungsten carbide buttons, matching international top brands for wear resistance. Precision CNC Processing: Entire CNC processing ensures quality consistency and reliable performance. Advanced Heat Treatment: Special stress relief processes guarantee durability and consistent performance. Customizable Options: Offers customized process, color, and mining object applications. SGS Certified Quality: Product meets SGS certification standards for quality assurance. 24-Hour Response Support: Sales team responds to inquiries within 24 hours, excluding holidays. 23 Years Manufacturing Experience: Specialized in drilling tools production with over two decades of expertise.