Thread Ring Gage 1"1/4-7 1"1/4-8 1"1/4-12UNF 1"1/4-16 1"1/4-18 1"1/4-20 1"1/4-28 UNEF 2A GO NOGO UN Gauge

Material: Gcr15 (53-60 HRC); 

thread ring gage

Class of fit: 2A including T=(GO) Z=(NOGO)RH( right hand)

Style: right hand

Package include:1 SET Thread Ring Gage(T / Z).