Zenith Bitzenburger Upgrade Kit

Here's an upgrade kit for your Bitzenburger jig that will allow you to fletch skinny and fat arrows with perfection. • Bitzenburger upgrade kit introduced a nock receiver built for specific inside diameter shafts for the most consistent vane-to-vane application • The replacement body will fit directly into your jig and will still adjust for all three different fletching patterns • Upgraded receiver comes with two inserts which are held into the body by a long screw which is tightened through the rear of the receiver • One insert is sized to fit snuggly into any arrow which uses a G nock • The second insert does arrows which use pin nocks, holding the pin by the hole in the insert. It also does arrows which use Super nocks (.246 carbon, Super Uni-bushings, etc.) • If the pin holder becomes too loose, just gently squeeze the segments together with a small plier until it holds the pin tightly again • This kit DOES NOT include a sleeve for X or H nocks • An adjustable upper support plate i