A characteristic of virtually all progressive reloading machines, regardless of brand, is that the dies are set rather close together. When you are first setting up a "naked" machine, there is plenty of wrench room, but if you have a need to adjust a die afterward, it often requires a delicate touch to maneuver a lock ring on a crowded toolhead. Dillon Precision has addressed this in two ways : 1" cast zinc die lock rings and a 1" Bench Wrench to fit them. This combination gives much more room to re-adjust dies after they're already mounted. The opposite end of the new wrench is a 7/16" box-end for adjusting the Powder Bar of any Dillon Powder Measure. These new lock rings fit any standard 7/8" x 14 dies.