For Economical and dependable brass ferrules enable you to make up custom hose assemblies. These brass ferrules are annealed for ease of crimping and they are brightened and lacquered so that product does not lose color, luster especially by exposure to air, dust and dirt in the machine or on the shelf. Specifications: 0.500 Inch ID x 1.0 Inch = 0.5 mm Wall Thickness : C46500 Brass Material 50 per Pack