This tool is from Air parts Inc dot com. They offer it in 10 and 20 hole option with a expansion of up to 36 inches. This tool literally makes your first time rivet jobs look like a professional and takes all the critical thought and frustration of alignment out of the equation. Stop over at air parts inc and let them know Dc Higher Ground sent ya.
Tool list
Rivet spacing tool: www.airpartsinc.com/1728_RIVE...