Hacksaw 3D model is available on CGTrader for $10. Original author: ecati. Specs: 4529 polys, 5082 verts.
SKP (Sketchup, filesize: 514 KB), OBJ (OBJ, filesize: 289 KB), FBX (Autodesk FBX, filesize: 464 KB), 3DS (3D Studio, filesize: 166 KB), DAE (Collada, filesize: 236 KB)