The Bohning Tower Jig has been the most efficient fletching machine on the market since 2006. The crossbow tower jig comes with all the components you need to fletch a variety of crossbow bolts and will fletch bolts up to .35” (8.89MM) OD. Additionally, a center post is included to fletch with an affixed nock. The included rings allow for consistent pressure that cannot be obtained with magnetic jigs. All tower jig arms can be wiped with acetone to make cleanup a breeze.