【PACKAGE INCLUDE】Aluminum base*1(Size: L x W x H: 13-3/4” x 2-3/8” x 5/8” ). Guide rail part*2. Nut & bolt kit*2. Internal hexagonal wrench*1.
【FUNCTION & 】The aluminum Arrow Spinner Inspector can check the shaft straightness, broad head balance and straightness, and feather balance, a necessary accessory for archery.
【SPECIAL DESIGN】Two pairs of 1-1/2inch diameter iron discs, staggered front-to-back, have high potential energy and high rotation speeds for effective arrow and arrowhead calibration testing.
【INSTALLATION STEPS】 STEP 1: Attach the non-slip rubber mat to the aluminum base to prevent the base from slipping. The face with two grooves in the aluminum base is the bottom. STEP 2: Place the nut in the groove of the aluminum base top face and adjust to the proper distance. STEP 3: Place the guide rail part on the aluminum base with the hole in the guide rail part plate aligned with the nut in the base.
STEP 4: Tighten the screws with the nuts on the aluminum base with an Allen wrench to secure the rail parts. STEP 5: Put the arrow on the test instrument, rotate the shaft by hand, good straightness arrows will be steady rotation.
【WIDE APPLICATION】The Arrow Straightness Detector Tool fits for all kinds of archery, such as carbon, fiberglass, aluminum, etc.