.5855 Plus .0002 (Go) Gage Pin HSS Class ZZ With Certificate of Accuracy (NIST Traceable)

.5855 Plus Pin High Speed Steel Class ZZ With Certificate Of Accuracy Printed On The Package Vermont Gage Usa #111358550 Tool Steel 60/65 Hrc 2 Long 10 Microinch Finish Or Better Nist Traceable Marked With Size & Direction Of Tolerance On Gages Over .0605