These are 5/8X24 TPI thread for AR 10 7.62x51 (308) rifles.
Thread all of your preban barrels with this.
This can also be used on Saiga 308 Rifles.
0.625" to 0.645" O.D. barrels.
Die Diameter is 1.5". Needs 1.5" die handle.
We highly recommend the Thread Alignment Tool(TAT) and Die Stock Handle to to make threading your barrel as easy as possible and to ensure the threads are straight not crooked.
TAT and Handle sold seperately
Dies do not have any warranty.
If you over tighten the die holder you can crack the die.
If you do not use oil you can break cutting teeth from the die.