SINCLAIR INTERNATIONAL's Stainless Steel Expander Mandrels are precision-made for neck turning, ensuring a perfect fit for the NT-3000 and NT-1000 tools, as well as older models.
The 270 Caliber (0.276") mandrel is designed to be used before neck turning to size the case, resulting in a more precise and easier turning process.
These mandrels can also be used to expand cases up to the next caliber size when paired with the NT-EXP Expander Body.