Take the guesswork out of nock positioning. Secure your bow in a vise, clip on the String Level and adjust the vise until the bow is at horizontal and vertical level. Place the nock arrow on the rest and attach the NOK-EZ Level to the arrow.
Slide the arrow up or down on the string until it is level. You've now located the perfect 90° nock positioning needed for precision tuning. Combo includes NOK-EZ arrow level and String Level.
Most of the time when I use these my bow doesnt need paper tuning. It shoots bullet holes with no adjustments needed! These are easy to use and priced right! Ive had them for a couple years now and they still get the job done!!!
simple innexpensive way to do basic tune up, just make sure the levels on the units are true, great for setting your knocks points, also very useful to set scope levels.
This product is extremely easy to use. Simply place one level on your knocked arrow and the other on your bow string and gain the confidence that your rest/knock is absolutely square. Word of advice though is that the product works best with a bow vice. Without a bow vice it tends to be a little hard to hold the bow level upright while trying to check the two different leveling bubbles.
If you do not own a bow vise this tool will be tough to use. However, if you do own one these levels make checking your nock height and rest height a breeze. My bow was slighty out of tune and my groups were not real consistent. Put my bow in the vise and clipped the levels on it was easy to see that my nock was too high. A must have tool to add to your tuning box if you are into tuning your own equipment.