The Hornady Lock-N-Load Deluxe Die Locking Ring Wrench is just the tool you need to complement your Hornady Lock-N-Load AP Press as well as any set of Hornady dies. This wrench was specifically constructed to hold your shellplates in place to keep them from slipping while you adjust the plate as well as secure it to your AP press. Not only is the Hornady Lock-N-Load Deluxe Die Locking Ring Wrench made from high-quality materials to ensure maximum durability but it features three flats for use in tightening spindle locks and lock rings as well as dies.