Bitzenburger Fletching Jig 1001268 Silver. The crossbow jig is indexed at 120 degrees for 3 fletch spacing. The crossbow jig also includes straight clamp for straight or offset fletching. Specifications for Bitzenburger Fletching Jig 1001268: Manufacturer: Bitzenburger Color: Silver Features of Bitzenburger Fletching Jig: Designed for fletching crossbow bolts Nock receiver that accepts all 22/64 diameter shafts with most end caps Indexed at 120 degrees for 3 fletch spacing Includes straight clamp for straight or offset fletching Package Contents: Bitzenburger Fletching Jig Bitzenburger 1020: Fletching Jig 1001268 Silver