NOW includes both right handed and left handed versions!
The original didn't sit all the way down on the Dremel. Also the guards on it were so high over the tool that it made it hard to use the tool to change bits. This remix try's to fix those issues.
You will notice between the pictures that it sits lower on the dremel. Basically the threads were offset by 2.5mm to do this.
A new "fixed" file is present which merges all the pieces into one, allowing it to be sliced by more software.