The model is grouped for easy selection and placing in your scene.
Open-end wrench: polys-1074, verts-1076 without interations.
Rozhkovo-spanner wrench: polys-996, verts-996 without interations.
Spanner wrench: polys-1016, verts-1014 without.
Interations with all wrenches: polys-70978, verts-36111.