Mechanical Handtools - Spark Plug Wrench (Polygon mesh 3D model) is available on CGTrader for $10. Original author: faizal-3dx. Specs: 485 polys, 483 verts.
OBJ (OBJ, filesize: 14.6 KB), BLEND (Blender, filesize: 430 KB), 3DS (3D Studio, filesize: 14.6 KB), DAE (Collada, filesize: 60.7 KB), LWO (Lightwave, filesize: 6.64 KB)