
Factory Price of Hard Rock Drilling Bits Dht Hammer Bitdhd340 Drill Bit. Customized Shank Dimensions: Round Shank OD available in 30mm-43mm and fully customized options. Customized Carbide Dimensions: Carbide OD available in 16mm-30mm and fully customized options. Customized Reach Length: Reach length available in 74mm-114mm and fully customized options. Custom Logo Printing: Optional laser printed custom logo available for branding. High Grade Materials: Constructed with high-grade tungsten carbide inserts and steel bodies. Advanced Manufacturing: Processed using state-of-the-art CNC machinery and heat treatment. ISO 9001 Certification: Certified ISO 9001:2000 standard with 100% finished product inspection. Comprehensive Warranty: 12-month warranty coverage with 7-day/24-hour after-sales support.