Small needle file handle 3.5mm hole

thingiverse

This is a compact file handle designed for small needle files, featuring a 50mm length and 11mm diameter. I created it because most existing handles on Thingiverse were too large for my needs. To ensure the hole size is suitable for printing, simply use a cordless drill in reverse mode with a 3-3.5mm drill bit as required. Avoid running the drill forward, as this can cause it to grab and lead to misaligned holes or injuries. For optimal results, print this handle on a raft or brim with three perimeters and infill densities ranging from 25 to 35 percent.