Thread CheckManufacturing Calibration Certification
Thread Check1/4-28 UNJF 2B Go/No Go Taperlock Plug Gage w/handle, PD: .2268" / .2311"
Thread Check#10-32 UNJF 2B Go/No Go Taperlock Plug Gage w/handle, PD: .1697" / .1736"