Description
Aluminum Multi-hole reference standard with certificate. 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 two EDM corner…