Description

Aluminum Multi-hole reference standard. Material: 7075-T6 Aluminum. Contains 20 holes; 1/8″, 5/32″, 3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 13/32″, 7/16″, 15/32″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 1.0″ inch. Each hole contains on the top layer contains Corner EDM corner notches; 0.030″ x 0.030″ x .005″ +/- .001″. The Middle layer contains 0.060″ x 0.030″ x .005″ +/-.001″ Mid -Bore Notch. The third layer contains a .020″ x 0.020″ x .005″ +/-.001″ Corner EDM notch. Includes Test Certificate traceable to NIST and Certificate of Conformance (COC).