Mueller Pre Cut Copper Tubing Type M 1/2 " X 60 " Price For: Each Material: Copper Outside Diameter (Inch): 5/8 Outside Diameter (Decimal Inch): 0.6250 Wall Thickness (Decimal Inch): 0.0280 Inside Diameter (Inch): 1/2 Length (Feet): 5 Length (Inch): 60 Alloy Type: 122 Additional Information: Inside Diameter (Inch) value is nominal size. Inside Diameter (Decimal Inch): 0.5690