1018 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 7075 Aluminum, 304 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.