8 round casing LTC & STC

8 round casing LTC & STC

Northern Gauge manufactures API 5B 8 round casing plug and ring gages in both Short thread casing “STC” and Long Thread Casing “LTC” from 4-1/2” to 13-3/8”.  All working gages are manufactured in full compliance to API 5B and fully traceable to API reference masters.