Simple Knife Low-poly 3D model is available on CGTrader for $2. Original author: cericanovas. Specs: 3842 polys, 4260 verts.
MAX (Autodesk 3ds Max, filesize: 2.3 MB), OBJ (OBJ, filesize: 1.06 MB), FBX (Autodesk FBX, filesize: 731 KB), GLTF (glTF, filesize: 31.1 MB), JPG (JPG, filesize: 16.5 MB), 3DS (3D Studio, filesize: 192 KB)