API working plug and API thread ring gages are manufactured to American Petroleum Institute (A.P.I) specifications and are used as the benchmark for calibration by the National Institute of Standards and Technology (NIST). The manufacturing process for our API plug and ring gages are licensed by the American Petroleum Institute (API) to Spec Q1, Spec 5B, Spec 7 & Spec 11B.
As an ISO 17025 accredited and ISO 9001 registered company we are always working to raise the bar in order to provide you with the highest quality products. Our API plug and ring gages are produced with only the highest quality tool steel hardened to Rockwell C60-63. Our special heat treat and cold treat process insures maximum gage stability. Each API plug and ring gage is then precision lapped to provide superior accuracy, optimum gage surface finish and longer wear life for the gage. Finally, they are inspected and certified in our state-of-the-art environmentally controlled laboratory insuring your API plug and ring gages provide unmatched quality, accuracy, stability, reliability and durability.
Our team of engineers has served on many different API gaging subcommittees with over 100 years of experience. We are here to assist you with any questions or special requirements you may have.
Please contact us at: 888-400-4243 with any questions or quoting you require or email your prints to firstname.lastname@example.org