Rock Stone Quarry Drilling Taper Button Bits 7buttons D34 for Hard Granite

Rock Stone Quarry Drilling Taper Button Bits 7buttons D34 for Hard Granite. High Efficiency Button Bits: Features hemispherical, conical, and parabolic carbide profiles for superior drilling speed and efficiency. Versatile Rock Adaptability: Available in chisel, cross, and button designs to handle light-duty to very hard rock formations. Durable Alloy Steel Construction: Manufactured from high carbon steel with forging process and spray-paint surface treatment. Flexible Shank Configurations: Compatible with Hex19, Hex22, and Hex25 tapered rods for various drill bit sizes. Comprehensive Heat Treatment: Rods available with high-frequency or fully carburized heat treatments for enhanced durability. OEM and ODM Services: Full customization options available from samples, designs, or minor modifications. ISO 9001 Certified Quality: Manufacturing process adheres to ISO 9001:2000 standards and GB, GOST specifications.