Fretsaw wing nut handle

thingiverse

I made this to speed up the process of blade loosening and tightening on my cheap fretsaw. Depending on your saw and whether you want it to fit tightly or loosely you may want to change the size a few percent. Center Hole is 5,5mm in diameter, slot 4mm wide and 27mm long Printed at 80% infill but less should also work depending on the torque you want to apply ;-)