304 Stainless Steel, 5-Step Test Blocks with the steps at .10", .20", .30", .40", .50".
Wood Case are also available
Other materials are available, such as 1018 Steel, 7075 Aluminum and 316 Stainless Steel along with Monel, Hastelloy plus other exotic materials.
These are considered to be Special Order with a 4 week lead time. Please contact us.