10 Step 2-20mm Stainless Steel Thickness Gauge Calibration Test Block. Application: for thickness and linearity calibration. A block of 10-step:2mm 4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Test Meters & Detectors\Other Test Meters & Detectors". The seller is "vetus-instruments" and is located in this country: CN.This item can be shipped worldwide.