PMA Tool Expander Mandrels$11.95
These PMA Tool Expanding Mandrels are machined from 17-4 medical grade stainless steel to give them a smoother, harder and more corrosion resistant surface. Mandrels are also longer than most expander mandrels on the market, and they feature a double taper which expands on both the up stroke and down stroke of the press. All PMA Tool Expanders are turned to .003 under bullet diameter to give you the correct fit of your cases on most neck turning mandrels. We strongly suggest that all new cases be expanded with a properly fitting expander mandrel prior to neck turning. These expander mandrels fit the PMA Tool Expander Die ((30-125 on this site), the Sinclair expander die body and most other expander dies which require a 3/8 die shank. Expander die sold separately. Made in the USA.
UPDATE 03/22/21: 6.5mm EXPANDER MANDRELS ARE OUT OF STOCK. THEY ARE IN PRODUCTION - WILL BE ABOUT A 10 DAY BACK ORDER.