78 .obj files for hard surface detailing.
I recorded a demonstration on my channel - https://youtu.be/yyU2SxxyNXw
I originally made for 3D Coat but you can use it perfectly well in Blender.
Doesn't seem to work that great with Zbrush though. But I haven't tested it too much there.
Use it for any commercial purpose but do not sell or redistribute.
Substractive Booleans Free Mesh Kit - 78 OBJs