... 6mm, lenghth is 40mm, with slot5.It's end mill with slot, for key cutting machine, be used in making car keys.6 ... Carbide 4.0x4xφ6x40406464Solid Carbide Company profile: ZHANGJIAGANG RUIZHENG TOOL.CO.,LTD Which is specialized in making all sorts of ... cutter, end mill,single angle milling cutter,side milling cutter,flat slotter,bitting cutter,milling cutter for cnc key cutting machine etc ...