Rivet Fan Spacing Tool Click HERE for more information! Evenly spaces up to 20 rivet holes at a time from 1/2" (13mm) to 1-1/2" (380mm) apart. This rivet fan spacing tool is just what you need for lining up those rivet holes. The clever accordion action of the fan spacer allows you to set up rivet holes with deadly accuracy. Made in USA from stainless steel. 1 lbs (0.5Kg) shipping weight.