Fin Alignment Guide for Model Rockets (EST2231)

The Fin Alignment Guide for Model Rockets is a precision-molded tool that simplifies the process of attaching fins by guiding three or four fins onto rocket bodies of various diameters—from BT-20 to BT-80—and keeping them aligned as the adhesive sets.

Its adjustable vertical fin holders accommodate fins made from 3/32-inch or 1/8-inch thick balsa, basswood, or plywood, helping ensure consistent, straight fins and reducing the trial-and-error of hold-and-dry assembly. This makes fin installation faster and more reliable for serious hobbyists seeking repeatable results.