
8-1/2"215.9mm 6 Blades High Wear PDC Oil Drill Bit - Chinese Factory. Ultra-High Wear Resistance: Diamond layer 2.5x industry standard; up to 8,300m footage in abrasive formations. Impact-Resistant Steel Body: High-strength alloy steel with arc transition; 30% higher impact toughness. Flexible Customization: Non-standard diameters (4-26 inches) and blade counts (3-8) fully customizable. Fast Delivery: Standard and customized models delivered within 15 days. Wide Application Range: Suitable for oil & gas, geothermal, coal bed methane, and hard rock mining. Cost-Effective Design: Steel body construction offers lower cost compared to matrix body bits. Comprehensive Certifications: ISO45001:2018, ISO9001:2015, and ISO14001 certified manufacturer.