Cobalt Chrome 8mm Wide Angle Stone Finished Wedding Band with Grooved Edge. This traditional style cobalt chrome mens wedding ring is a total of 8mm wide with a flat top and a grooved edge. The center of the ring has an angle stone finish, with polished edges. Available with 12 other finish options. Designed and manufactured in the USA by Lashbrook Designs, this ring can be customized for any width, finish or metal including, Titanium, Black Zirconium, Carbon Fiber, Damascus Steel, Mokume Gane, Yellow, Rose or White Gold, Silver, Platinum and Palladium. Comes with a Lifetime guarantee against defect. Our cobalt chrome is made with aerospace grade cobalt chromium. This extremely hard and temperature resistant alloy is used in jet engine turbines and afterburners.