The 1-1/2″ x 1-1/2″ Stainless Steel (303) Three-Piece Clamp Coupling with Keyway is designed to securely connect two aligned shafts, allowing them to function as a single unit with zero backlash for precise torque transmission. Its three-piece clamp design keeps one shaft securely in place while the other is moved or replaced, making installation, adjustment, and maintenance more convenient. Precision-machined from 303 stainless steel, it features a smooth straight-through bore with keyways that protects shaft surfaces from damage, along with a non-marring clamp mechanism and high clamping force for a secure, reliable connection. Stocked In: Steel, Stainless Steel.