#0-80 UNF 2A Go Ring Gage #0-80 UNF 2A Go Ring Gage Class X tolerance per ANSI B1.2 Manufactured from Tool Steel; 60/62 Rc Pitch Diameter:.0514" Certificate of Accuracy included; NIST traceable #0-80 UNF 2A Go Ring Gage Product Specifications UPC 662631430214 EAN ...