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. Evenly spaces up to 20 rivet holes at a time from 1/2" (13mm) to 1-1/2" (380mm) apart. Simply expand or contract the tool to get the rivet spacing you're looking for and start laying out your holes. It just doesn't get any easier than this, folks! Made in USA from stainless steel. 1 lbs (0.5Kg) shipping weight.