The Model 41B spinner from Rauch Manufacturing Inc. features two hardened-steel, serrated power rollers. One idle roller is designed to handle sizes 7⁄8-inch to 41⁄2-inch drill pipe, casing and galvanized pipe. This spinner handles 1,000 psi to 3,000 psi hydraulics and 90 psi to 150 psi air. Rauch Manufacturing Inc., Card No. 210