Technical Data:
Product type: Limit thread plug gauge
Material: High-quality special gauge steel
Finish: Hardened, seasoned and finely polished
Go measuring end: Full thread profile
No-go measuring end: Shortened thread profile with only a few threads
Checking principle: Taylor principle
Thread standard: BS 919
Thread designation: 6-40UNF
Tolerance: 2B

Application:
For checking internal threads at the go and no-go ends.