API 8 1/2" Driling Bit, 215.9mm PDC Bit, Rock Drill Bit for Oil/Gas Well Drilling

API 8 1/2" Driling Bit, 215.9mm PDC Bit, Rock Drill Bit for Oil/Gas Well Drilling. Efficient Shearing Technology: Utilizes PDC compact cutting structure to break rock via shearing for fast drilling in soft to intermediate formations. Premium Material Construction: Drill body made of 42CrMo alloy with Polycrystalline Diamond Compact (PDC) wear-resistant alloy cutters. 20+ Years Manufacturing Experience: Over two decades of specialized experience in oil drilling bit production and professional R&D capabilities. Certified Quality Assurance: ISO 9001:2000 and SGS certified with independent physical and chemical laboratory for rigorous testing. Flexible Customization Options: Offers full customization, minor customization, and flexible options from samples or designs. Trusted by Industry Leaders: First-class network supplier for PetroChina and Sinopec with 14 years of export experience. Comprehensive After-Sales Support: Available after-sales service with a 1-year warranty covering mechanical defects and support. Advanced Production Equipment: Equipped with Yamazaki Mazak CNC tools, heat treatment furnaces, and plasma spray welding machines.