Hornady Zip Spindle Die Conversion Kit .17-.20 Caliber. 17-.20 Caliber Kit 43401 is a convenient way to get more out of your sizing die. This Hornady reloading tool converts Hornady New Dimension sizing die to Hornady's threaded spindle Zip Spindle design. This model of the reloading tool is designed to convert .17 to .20 caliber full-length sizing die. Hornady has included a threaded spindle and a threaded spindle collet in the Hornady Zip Spindle 1pc Kit. Specifications for Hornady Zip Spindle .17-.20 Dies Conversion Kit: Manufacturer: Hornady Projectile Caliber: .17 Caliber Quantity: 1 Features of Hornady Zip Spindle Threaded Spindle .17 to .20 Die Kit: Converts Hornady New Dimension sizing die to Zip Spindle design Includes a threaded spindle collet and a threaded spindle Designed for .17 to .20 caliber sizing die Package Contents: Hornady Zip Spindle .17-.20 Die Conversion Kit Hornady 43401: Zip Spindle Die Conversion Kit .17-.20 Caliber