Shaft Replacement Couplings PFS-750 Filters Sort results Reset Apply Shaft Core OD (mm/inch)Model No.Price12.7 mm or 1/2"Tool Coupling TC-750$ 6+ 12.7 mm or 1/2"Case Coupling CC-750$ 9+ 12.7 mm or 1/2"Manifold Cap MC-750$ 16+ 12.7 mm or 1/2"Shaft Washer 11/16 x 1$ 1+ 12.7 mm or 1/2"Drive Coupling DC-750$ 3+ 12.7 mm or 1/2"Nylon Guard NG-750$ 19+