H22 Tapered Drill Rod 7 Degree for Mining Small Hole Drilling Machine

H22 Tapered Drill Rod 7 Degree for Mining Small Hole Drilling Machine. High-Strength Alloy Steel: Manufactured with 55SiMnMo alloy steel ensuring durability and wear resistance. Customizable Color: Available in Black or customized color options to meet specific needs. Hexagonal Shape: Features a hexagonal tapered design optimized for mining and drilling applications. High Hardness Performance: Hardness reaches HRC32-35 after normalizing and HRC49-57 after quenching. ISO 9001:2008 Certified: Product meets international quality standards for reliability and safety. Versatile Applications: Ideal for mining, quarrying, tunneling, and infrastructure construction. Flexible Customization: Supports full customization including shape, color, and design specifications. Comprehensive Warranty: Includes 3-month warranty coverage for mechanical defects and quality assurance.