uxcell 1/4 inch to 10mm Bore Rigid Coupling Set Screw L25XD16 Aluminum AlloyS…
Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity. 2 Pcs x Rigid Shaft Coupler. Rigid coupling,high torque with rigidity,low inertia and excellent sensitivity.