Defelsko Certified Plastic Shims These convenient, pre-packaged, color-coded plastic shim sets (foils) are used to verify the accuracy of electronic dry film thickness gauges. We offer ‘measured’ plastic shim sets, in 1, 2, 5, 10 and 20. The Certified shim set is 1, 2, 3, 5, 10, 20, 40 and 60 mils. Made in the USA.
