
7 Degree Tapered Cross Drill Bits. Customizable Taper Angles: Taper angles like 4.8, 6, 11, and 12 degrees can be made per customer requirements. Premium Material Construction: Body made of high-quality imported steel; head uses special alloy with special welding processing. Sharpenable Carbide Tips: Carbide tips can be ground to be sharper when worn out, extending tool life. Versatile Mining Application: Widely used in granite/marble quarries, gold mines, railways, tunnels, and rock engineering. Custom Packaging Options: Standard ply-wooden cases available; packaging can be customized according to specific requirements. 24-Hour Response Service: Sales team responds to questions within 24 hours (excluding holidays); technical support available anytime. SGS Certified Quality: Products hold SGS certification, ensuring reliable and stable quality for global markets. 23 Years Manufacturing Expertise: Specialized in drilling tools and spare parts for 23 years with advanced technology and equipment.