Usage is the same as the genuine product.
All screws used are M5.

It may have some peculiarities, but I don't think there is a chisel that can't be sharpened.
I also sharpened the oval skew chisel.
A semi-circular cutting edge is also possible.

The angle cannot be changed for data without "Free Angle" in the file name.
Data that includes "fixed" in the file name is data integrated with the housing.

M5 Knobs.
https://www.thingiverse.com/thing:641854