These kits help you get the most from your Dillon reloading machine. Shellplate bearings help to stabilize the your press. The shellplate action is dampened and this reduces spills due to plate snapping. You will experience better primer seating and increased run rates. The bearing kit allows you to run the shellplate bolt tighter than you would normally. The bearing overcomes the additional friction created, thereby decreasing runout and increasing the accuracy of overall length of your cartridge.
The premium / quick adjust kits come with knobs and thumb screws to make powder and press adjustments a 'no tool' job. Powder knobs are labeled so you never forget which way to turn the knob. Detailed instructions are included with every kit.