Multifix Aa tool post

3D step file for Chinese copy of Multifix Aa (or A0) lathe tool post and AaD1250 tool holder. Measurements were taken with vernier caliber so some inaccuracy may exist but main dimensions should be quite OK. I don't have exact/correct information about serration dimensions so I don't advise to use this file serration for any tool holder design. If somebody has correct dimensions for notches, I would be happy to update the 3D file with those dimensions.