Bohning Crossbow Cauldron Fletching Jig Advanced 3-vane fletching system for crossbow bolts;Fletches all three vanes simultaneously for time-saving convenience;Snap-in inserts allow quick tool-free adjustments;Compatible with vanes up to 5 inches in length;Adjustable pressure ring fits micro, standard, and large-diameter bolts;Twist dial ensures perfect arrow indexing without removing the nock;Easy-to-clean inserts can be soaked in acetone to remove glue residue;Manufactured and assembled in the USA