2.5-5-7.5-10-12.5mm 5 Step Test Block 304 Stainless Steel Calibration Test Block For Ultrasonic Thickness Gauge ,Easy to Use

Size: 2.5-5-7.5-10-12.5mm Dimension: 20x100mm Material: Stainless steel Packageincluding: 1 unit Calibration; Test Block; 1 certification; 1 suitcase Application: Easy to use in precision clamping of parts indrilling boring, milling, prinding, assembly work, etc.