
Taper Rod Drilling Attachment Hoehole Button Bit 7buttons D32 D34 for Stone Quarrying. Versatile Bit Designs: Offers Taper Chisel, Cross, and Button bits for various rock hardness and drilling depths. Customizable Dimensions: Diameter ranges from 20mm to 55mm with socket sizes 19mm, 22mm, and 25mm. High-Quality Material: Manufactured from high carbon alloy steel with forging process and spray-paint finish. Heat Treatment Options: Rods available with high-frequency or fully carburized heat treatments for durability. OEM/ODM Services: Full customization, minor customization, and design-based customization services available. Fast Delivery: Standard delivery time is 20-30 days, with peak season lead time within 15 workdays. ISO Certified Quality: Products meet ISO 9001:2000 standards and comply with GB and GOST specifications.