Redding’s new Micro-Adjustable Taper Crimp Dies are Top Adjusting to simplify making precise adjustments. Variations in case length and wall thickness both adversely affect proper adjustment. Traditional Taper Crimp Die adjustment is both time consuming and imprecise due to the coarse 7/8-14 pitch die threads and the need to re=position the lock ring, this is especially important to users of preogressive reloading presses with tight space constraints. The new Reding Micro-Adjustable Taper Crimp Dies have a knurled micrometer type barrel situated on the top of the die for easy access and provides approximately +/-.100" of "on-the-fly" adjustment after initial setup Mfg: Redding