This is the a larger sized handle than the original. The blue handle is this version, black the original.

An ergonomic 2 piece handle for needle files. The screw cap allows for easy swapping of the file, while still retaining the file firmly in place.

Multiple sizes available 2-5mm (diameter of file shaft).

The sizes shown in the stl's include enough tolerance to insert the file shaft.

Tested on Bacho needle files (3.0 + 3.25 mm shafts).

Will accommodate shafts up to 115mm long.

Works fine with PLA, I imagine that it would work fine with PETG and other plastics.

If there is not a size that is quite right for you, leave a comment to let me know what size you need, I'm happy to upload more as needed.