A new, precise one-piece rigid coupling for applications requiring extra axial run-out less than 0.001 TIR is being introduced by Stafford Manufacturing Corp. The Accu-Clamp” Coupling incorporates integrally machined, self-centering clamping collars at both ends for a host of applications. It also permits precise shaft alignment, eliminating the conventional longitudinal slot. Available in a variety of sizes, the Accu-Clamp Coupling is machined from steel as a standard product and is also available in either aluminum or stainless steel.