3M, 7000118387, Cloth Belt, File L-Flex, 18 in Belt Length, 3/4 in Belt Width, 36 Grit, Very Coarse 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