Set of 8 hexagon keys in metric dimensions. measures: 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0 and 8.0mm. oxidized finish treatment provides excellent surface protection, greater precision at the tip. allows you to work from several different positions. stop at 270º, generally used for maximum rotation. high quality impact resistant case. in plastic support