Cut these European mount deer hangers today out of 14ga steel. Had a bunch of scrap on two 4x8 sheet, and ended up cutting about 50 of them. The easiest way I have found to remove the millscale and dross, if not crunched on time, is to soak in 50/50 muriatic acid and water for a few hrs. Make sure you neutralize the acid before touching, or it will burn you!