This toolhead has lock rings that allow the sizer and seater dies to free-float a certain amount. This allows the dies to center themselves precisely over every cartridge for best possible alignment and a more concentric ammunition.
This toolhead does not use the original toolhead pins supplied by dillon. It is bolted with two M3 bolts which lift the toolhead into its upmost position. When you cycle cases downwards the toolhead does not move and cases go out in a straight line. Best practice is to loosen M3 bolts slightly and push index shell-plate with case into dies, and tighten M3 bolts in the best toolhead position.
These toolheads are made to the highest manufacturing standards, CNC machined from 6082 aluminum which is much stronger and has less flex than a cast toolhead. All critical dimensions are machined in a single operation, ensuring that all surfaces are true and aligned relative to each-other. The die holes are positioned with a very high degree of accuracy and the 7/8-14 threads are machined to tight tolerances for a precise fit and alignment, yielding dies that are more precisely centered in each hole and better aligned to the cartridge cases in the shellplate. The flange is also flatter than can be achieved with a cast toolhead.