Product Summary
The K&M PowerStroke V2 Expand Mandrel for .375 caliber is an essential tool for precision reloaders preparing brass for neck turning. Because commercial dies lack standardized expander buttons and brass exhibits elasticity, this mandrel ensures the inside diameter is perfectly sized before you begin turning. It works in tandem with the Mandrel Holder and PowerStroke V2 Press Adapter to iron out and slightly expand the case neck. This setup is ideal for preparing virgin or competition brass to ensure a consistent and accurate fit for your specific reloading needs.










