About this 3D model

Dumbbell bar wrench that fits most star-lock nuts on 1 inch bars - no more rattling weights! Makes tightening and loosening star-locks a breeze! Print with lots of outer walls for strength. 3D printable replacement nut is included with model on the 2nd sheet. The dimension across the star “lobes” is 2-¾". If your star-locks are slightly different in size the entire wrench can be scaled to make them fit. The included nut will fit a 1"-4 TPI ACME threaded bar.