Specification Brand : DINGGUANGHE-CUP BulletPoint1 : Length: 65mm BulletPoint2 : Diameter:40mm BulletPoint3 : Shaft usag: 2pcs(Only one end has keyway, the other end does not have keyway) BulletPoint4 : Stepper Motor Set BulletPoint5 : Keyway width x keyway depth : 5mmx2.5mm Color : Onecolor Department : unisex-adult ExternallyAssignedProductIdentifier : 9406102670775 ItemName : DINGGUANGHE-CUP Coupler 2pcs for CNC Flexible Jaw Spider Coupling Shaft Coupler D40 L65mm Metal (Inner Diameter : 22 17(5mm Keyway)) ItemPackageQuantity : 1 ItemTypeKeyword : multi-flex-couplings Manufacturer : DINGGUANGHE-US Material : Metal NumberOfItems : 1 PartNumber : DINGGUANGHE-US ProductDescription : Length: 65mm Diameter:40mm Shaft usag: 2pcs(Only one end has keyway, the other end does not have keyway) Stepper Motor Set ProductSiteLaunchDate : 2022-04-20T02:38:28.369Z Size : 22 17(5mm keyway) Style : Manual UnitCount : 1