Thickness calibration
This 4-Step Test block comes in thicknesses of 5.0mm, 10.0mm, 15.0mm and20.0mm . Step face measures 20.0mm x 20.0mm
Dimensions: 4A : 6.25, 12.5, 18.75 and 25 mm steps
4B :5, 10, 15 and 20 mm steps
Material: carbon steel,Stainless steel
