Technical information i 5.3. Marking and stamping of forming taps Marking WGN M10x1,2 -6HX -LH DIN-371 E SR HSSE-PM IK TiCN destination size of thread class of thread thread direction standard symbol chamfer oil grooves material of blade internal cooling coating symbol CSteacmhopwinagnie class of thread thread direction size of thread producer destination production year order number FANAR 123456 WGN M10x1,25-6HX-LH chamfer material of blade internal cooling hole diameter 12 297