21st Century - Steel Neck Turn Arbor Size:20cal Precision CNC machined from high

Precision CNC machined from high strength 6061-T6 aluminum alloy

which includes additional parts for keeping your optic clean at home and in the field

This adapter fits the 21st century neck turner unit and inside fits the KM Shooting brand of neck turning arbors

The second at a 45° and the third at 90° to lay flat back

Inspired by the NXS

21st Century - Steel Neck Turn Arbor Size:20cal Precision CNC machined from high21st 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. These are sized . 002" (+ . 0002") below bullet diameter.