Thread Ring Gage 1" 5/16-12 UN 2A Thread Ring Gauge
G
O
NOGO
Material:Tool Steel 60-62 RC;
Class of fit: 2A including T=(GO) Z=(NOGO)
Brand new Standard:
ASME B1.2
Style: Solid RH( right hand) .T=GO Z=NOGO.
Package include:1 Set Thread Ring Gage.