The STAINLESS STEEL EXPANDER MANDRELS are precision-crafted from high-grade stainless steel for neck turning, ensuring durability and accuracy.
These mandrels are designed to be slightly larger than the turning mandrels, by .001", to provide a perfect fit for the neck turning tools, enhancing the precision of the case sizing process.
Compatible with both the NT-3000 and NT-1000 neck turning tools, as well as most older models, these mandrels can also be used to incrementally increase case neck size up to the next caliber.