... C,T/T alloy cold work round bar steel O1/1.2510 product Specifications: 1.2510: Tool ... Steel, 1.2510 / O1 / SKS 3 / 9CrWMn, 1.2842 / O2, D2 ... /1.2379, H13/1.2344, A2, O1/1.2510, S7, L61.2510: 1. Tool Steel, ... 1.2510 / O1 / SKS 3 / 9CrWMn, 1.2842 / O2, D2/ ... 1.2379, H13/1.2344, A2, O1/1.2510, S7, L62. Size : Round bar (dia. ...