21st Century - Stainless Steel Turning Arbor - 6mm/243 Cal.
21st Century Innovation Turning Arbors are machined for the perfect fit for the turning operation, thus proper neck tension. Precision CNC machined from high grade stainless steel. Can be used as an expander mandrel for setting neck tension. We recommend Imperial Sizing Die Wax Lube for use with this expander mandrels
These are sized .002" (+/- .0002") below bullet diameter.
Diameter | 243 Caliber / 6mm |
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