Specification Brand : KUAOXK BulletPoint1 : 1. Made of aluminum alloy, lightweight, anti-oxidation, CNC cutting, outstanding appearance, high-precision workmanship, and long service life. BulletPoint2 : 2. Provides torque transmission and alignment, efficient coupling design. BulletPoint3 : 3. Widely used: used to transmit motion, widely used in small CNC machine tools, 3D printer Z-axis couplings, etc. Color : One Color ExternallyAssignedProductIdentifier : 8405422210761 ItemName : Rigid coupling,Stainless steel rigid coupling 10pcs D19L25 Aluminium CNC Motor Shaft Coupler 5mm to 8mm Flexible Coupling 19mmx25mm 3/4/5/6/6.35/7/8/10mm(3x6.35) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : set-screw-couplings Manufacturer : KUAOXK Material : Metal ModelNumber : KUAOXK NumberOfItems : 1 NumberOfPieces : 1 PartNumber : KUAOXK ProductDescription : 1. The flexibility of the coupling eliminates stress between the motor and the driven components. 2. High strength, strong plasticity, good heat resistance and good toughness. 3. A shaft coupling is a coupling that connects two shafts together to transfer torque and rotational motion.