10mm Tru-Stir Stirrer Shaft Coupling, Tool-Free, 5/16@@@ Upper Male Coupling, For Use with 3-Jaw Jacobs Chuck, Each

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Tru-Stir Stirrer Shaft Coupling, Tool Free. Fits Stirrer Shaft 10mm OD. Upper Adapter 5/16" Male. For Use With 3 Jaw Jacobs., The unique design of our Tool-Free Tru-Stir™ stirrer shaft coupling eliminates the need to use rubber hose or universal adapters to attach your stirrer shafts to overhead stir motors. Coupling incorporates a unique helical stainless steel spring permitting up to 1/4” of offset misalignment and 45° of angular misalignment. Coupling is rated for 24 in-lbs of torque without the backlash normally associated with common coil springs.