MEC STAR CRIMP KIT 12ga SPINDEX 6/8 POINT

These plastic spindex type crimp starters rock. There are other types, including a brass one. But the plastic one indexes very well automatically and will keep on working for many thousands of shells. Eventually the plastic part will pop off of the ball joint too easily, necessitating replacement where the brass one wouldn't need replacement. But the plastic one indexes and centers so much better that there is no comparison - buy this one.

These crimp starters work, what else can I say.