Check out Pliers High Poly knife with handle 3D model on CGTrader for $10. High-quality mesh by pbrscans: 258586 polys, 129295 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 9.03 MB), MA (Autodesk Maya, filesize: 4.52 MB), FBX (Autodesk FBX, filesize: 9.29 MB)