... 6mm, lenghth is 40mm, with slot5.It's end mill with slot, for key cutting machine, be used in making car keys.6 ... ,side milling cutter,flat slotter,bitting cutter,milling cutter for cnc key cutting machine etc. Don't hesitate to contact us,if ... don't see what you're looking for. We look forward for your enquiry! for key cutting machine 2 flutes tungsten carbide end mill