The Mec Reloading Spindex Star Crimp Kit for 12 gauge (part no. 846212) upgrades your MEC press to a six-point star crimp instead of a standard roll crimp. The Spindex-style crimp starter folds the hull mouth into a tight star pattern, then the finish die closes it flush, giving a more consistent, better-sealed shell than a basic roll crimp on many hull types. It is built specifically for 12 gauge, matching the hull diameter this gauge requires.

Key Specifications

• Built for 12 gauge shotshells, so the star crimp folds match this hull diameter.
• The Spindex design forms a six-point star crimp that closes tighter than a standard roll crimp.
• Fits MEC shotshell presses that accept a Spindex-style crimp starter and finish die combination.
• Overall length of about 4.6500 inches for the kit’s die components.
• Weighs approximately 1.6 oz shipped, light enough to keep several on the bench or in a range bag.

Frequently Asked Questions

What gauge is this kit for? This Spindex Star Crimp Kit is built for 12 gauge shotshells.

What does a Spindex crimp do? It forms a six-point star crimp on the hull mouth, which typically seals tighter and more consistently than a simple roll crimp.

Buy the MEC Spindex Star Crimp Kit 12 Gauge

Step up to a tighter, more consistent crimp on your 12 gauge loads. Order from our reloading equipment lineup and our Lubbock, Texas team can help confirm it matches your MEC press.