
Pin Drive Roller Kelly Bushing for Wellhead 17-1/2 Rotary Table. Wide Size Range: Manufactures master bushings and insert bowls from 17.5 to 49.5 inches. Multiple Drive Types: Available in pin drive and square drive configurations for various applications. Comprehensive Compatibility: Compatible with standard rotary slips, drill collar slips, casing slips, and roller kelly bushings. Strict Quality Control: Experienced QC team performs strict inspection and testing before shipping. Fast Delivery Options: Production takes 20 days; only 2-3 days if stock is available for requested sizes. Lifetime Technical Support: Technical support available at any time with 24-hour response for sales inquiries. Quality Warranty: 1-year warranty with free replacement provided for failures confirmed as product quality issues.