3M, 7000118383, Cloth Belt, Single Flex, Series: 777F, 18 in Belt Length, 1/2 in Belt Width, 80 Grit, Medium Grade, Polyester Backing, Closed Coat, Orange, Applicable Materials: Aluminum, Brass, Bronze, Carbon Steel, Cobalt and Nickel Alloy, Copper, Hardened Steel, High Nickel Alloy, Soft Metal, Stainless Steel, Titanium and Titanium/Zirconium, YF-Weight Backing Weight, Wet/Dry Wet/Dry Operation