The model is based on my Maxwell model. I've sculpted the pencil in Zbrush and projected the higher details to a low poly model with Xnormal. I've played around with Substance painter and Photoshop to get the best PBR textures. I've played around with the material shading in Sketchfab and it looks a bit weird compared to the Marmoset Toolset engine.
Poly count: 460 Tris
Texture: 2048x2048 pixels
Pencil PBR Test on SketchFab.