About this 3D model

Made cuple of headless guitars using the guyker headless bridge system, but on some builds it get hard to tune, be it from the spacing of the single bridge pieces or from the tension of the string. Either way, had to make my life a bit simpler NOTE: This tunning key only works with this specific guyker bridge in the foto bellow, but if it works with any other simaler bridge, update me on it