Hornady Custom Grade New Dimension Die Zip Spindle Kit - Precision Reloading Accessory

If you've been running older Hornady New Dimension sizing dies, the Hornady Custom Grade New Dimension Die Zip Spindle Kit gives you a straightforward way to modernize them with the threaded spindle design. The kit swaps out your existing non-threaded spindle assembly for a new spindle and collet featuring light threads that eliminate the slippage and fidgeting that comes with the older friction-lock design. Whether you're fine-tuning sizing for precision rifle loads or just tired of fighting with spindle creep during adjustments, this upgrade is a practical addition to your reloading bench.

The threaded spindle and collet system makes lock-down rock-solid—tighten the collet once and your spindle stays put. Installation is straightforward: pull the old spindle, collet, and expander ball from your die, thread the new spindle into the expander ball, drop it in, and secure the new collet. You'll keep using your existing expander ball and decapping pin retainer, so there's no waste or redundant parts cluttering your setup.

Keep in mind that this kit is designed for any caliber Hornady New Dimension sizing die manufactured before the threaded spindle became standard (generally pre-2006). If your dies are already the threaded type or if you're running 17 or 20 caliber dies, you'll want to verify compatibility before ordering—those smaller calibers require a separate Zip Spindle Kit version. This is a no-frills, focused upgrade for reloaders who want their dies to perform without headaches.

Key Features

• Threaded spindle design eliminates spindle slippage during die adjustment
• Firm, reliable lock-down without fumbling with friction-fit designs
• Works with any caliber Hornady New Dimension sizing die (except 17 and 20 caliber)
• Simple installation using your existing expander ball and decapping components
• Steel construction for durability and long service life

Specifications

Frequently Asked Questions

Will this kit fit my Hornady New Dimension dies?

This kit works with any caliber Hornady New Dimension sizing die manufactured before the threaded spindle became standard (generally before 2006). If your dies were shipped in 2006 or later, they likely already have the threaded spindle design and don't need this kit. For 17 and 20 caliber dies, you'll need the separate Zip Spindle Kit version designed for those smaller calibers.

What parts do I need to keep from my old die setup?

You'll reuse the expander ball and decapping pin retainer from your existing die. This kit includes only the new threaded spindle and threaded collet—no other components. Simply detach those items from your old spindle assembly and thread them onto the new one.

How do I install the Zip Spindle Kit?

Remove the non-threaded spindle, collet, and expander ball from your die. Attach your existing expander ball to the new threaded spindle, then install the threaded spindle and new collet into the die. Tighten the collet to secure everything in place. The process takes just a few minutes and requires no special tools.

Does this eliminate spindle slippage?

Yes. The threads cut into both the spindle and collet create a positive lock that prevents the slippage common with friction-fit designs. Once you tighten the collet, your spindle stays locked in position through adjustments and repeated use.