Summary

This is lever file changed a little bit. I have added more space around bearing hole for strength. Because due to screw holes the are around hole is so thin and easily broken. And now with more area around bearing hole new 3d printed lever is more rugged.
3d print it with ABS or PETG.
I have printed using APB and 100% infill.

In the pictures above, While one is of PLA (original lever file) while Black one is of ABS (my remixed version).