4 STEP UT CALIBRATION BLOCK INCH VERSIONDimensions: L X W X T (3” X ¾” X 0.25”, 0.50”)Description: Metric Version of the 4 Step UT Calibration Block for Thickness and Linearity. The Measure Steps in the 4 Step Calibration Block range from below measurement variants.Step Range Variants:1. Steps starting from 0.25” – 1” with 0.25” incrementson each step.2. Steps starting from 0.50” – 2.0” with 0.50”increments on each step.3. Customized sizes also available,Material: Carbon steel Stainless Steel Titanium Aluminum Alloy Steel Cupro Nickel Inconel etc…