This is a 12-arm belt made of aramid fiber. It is used to support rotary tools, such as saws and drills. It is also used to hold parts in place while they are being machined.
This is a 12-inch-wide, 7-inch-deep, aramid belt with a 1-inch-wide, 1.5-inch-deep, and 0.5-inch-thick belt loop. It is designed to hold up to a 1.5-pound weight.