Description
Surface reference standard, 304 Stainless steel, with EDM notch depths of 0.008″, 0.020″ and 0.040″ inches (0.2mm, 0.51mm and 1.02mm). Reference standard overall dImensions 1 X 4 X 0.25 inches (2.54cm X 10.1cm X 6.35mm). EDM NOTCHES .005″ W +/-.001″