1. High quality and factory prices 2. exchangable with many famous brand like Sandvik, Atlas Copco. Ingsoll-rand and ... ,R28,R38,T38,T45,T51full-brigge,semi-bridge,same diameter,adapter coupling, Coupling Sleeve TypesandvickSpecification(Length)No.R38-R38 R38-170T38 ... -R32F R32-R32Packing Detailed: Factory prices! Superior quality coupling sleeve with different thread type