Sinclair stainless steel neck turning and expander mandrels are precision-made from high grade stainless steel, with large caliber mandrels designed specifically for 35 to 50 caliber cartridges.
Turning mandrels are sized 0.002 inches under bullet diameter, while expander mandrels are 0.001 inches under bullet diameter, ensuring accuracy and consistency for handloaders.
The Sinclair International 50 Caliber Stainless Neck Turning Mandrel is part of a system that requires the Large Caliber Expander Body and NT-5000 Turning Tool for proper use.