Needle File Handle w/ Thumb Set Screw

thingiverse

A modified "Parametric Magnetic Driver Bit Handle" now works with Needle File Sets. I narrowed the handle, adapted the shaft hole, and added a slot for a 6-32 square nut to hold needle files in place using a thumb screw. The fit is tight, ensuring stability, and it's comfortable for large hands. To adjust, simply expand the hole with a hot drill bit if necessary. I performed this modification on an HF needle file set, accommodating varying shaft diameters by starting with the smallest and working up in size until the largest could just barely fit.