Description
Custom multi-hole 100° countersink reference standard Material: 7075-T6 Aluminum. Hole sizes: 5/32″, 3/16″, 1/4″, 5/16″, 3/8″, 7/16″, 1/2″. Countersink holes opposite side. Thru hole EDM notches in each hole, .020″ Deep x .005″ Wide +/-.001″. Includes Test Report and Certificate of Conformance.