Description
Multi-Hole reference standard. Material: 7075-T6 Aluminum. 12 Holes 3/16″, 7/32″, 1/4″ ,9/32″, 5/16″, 11/32″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 3/4″ .020″ x .020″ x .005″ Wide ± .002″ Through EDM Notches in each hole. Standard also includes 3 surface EDM notches .008″, .020″ and .040″ Deep x .005″ wide ± .002″. Includes Test Report Traceable to NIST and Certificate of Conformance.