True Precision

3-Pack of O-Rings for Thread Protectors

High Heat O-Ring 3-Pack for True Precision Thread Protectors. 7/16" ID, 9/16" OD, 1/16" Thickness

True Precision

1/2x28 Thread Protectors

- 1/2x28 thread protector made from 416R stainless steel. - Includes machined o-ring locking pocket and Viton high-heat O-ring. - Made in the USA.