Hornady Zip Spindle Die Conversion Kit. This Hornady reloading tool converts Hornady New Dimension sizing die to Hornady's threaded spindle Zip Spindle design. Hornady has included a threaded spindle and a threaded spindle collet in the Hornady Zip Spindle 1pc Kit. Specifications for Hornady Zip Spindle Dies Conversion Kit: Manufacturer: Hornady Quantity: 1 Features of Hornady Zip Spindle Threaded Spindle Die Kit: Converts Hornady New Dimension sizing die to Zip Spindle design Includes a threaded spindle collet and a threaded spindle Package Contents: Hornady Zip Spindle Die Conversion Kit Hornady 43400: Zip Spindle Die Conversion Kit