AAE Bitz Knob 3 & 4

Precision Vane Spacing Receiver Upgrade for Bitzenburger fletching jig! The Bitz Knob 3 & 4 solves the most common frustration in arrow fletching — uneven vane spacing. Engineered with precision-machined index dimples, it delivers consistent spacing across all three-vane configurations (120°, 90°, and 75°x105°) that match the original jig specifications. The innovative wedge design seats your nock in the exact same position every time, ensuring positive engagement with both target and hunting nocks. No more adapters, inserts, or adjustments needed — one tool handles nocks of any size with repeatable accuracy. Need to repair a single vane? The integrated set screw lets you rotate the nock feature independently, eliminating the need to rotate your arrow shaft. Built for archers who demand consistency in every fletching session, whether you're building a dozen arrows or maintaining your favorite shafts.