Description:
I made this two material in Adobe Substance 3D Designer without using even 1 bitmap.

PBR | 4K | PNG | Seamless

Base color "PNG 8 bit"
Metallic "PNG 16 bit"
Roughness "PNG 8 bit"
Normal DX "PNG 8 bit"
Ambient occlusion "PNG 16 bit"
Displacement "PNG 16 bit"

In the archive:
* .max
* .fbx
* .obj
* .mtl