What is D2 tool steel?
D2 steel is a steel that is vacuum heat treated i.e raised to a high temp and rapidly cooled by a vacuum process it is an ideal steel to use for punch and dies or injection mould tools. It is a difficult material to machine and requires a special wheel for surface grinding after heat treatment. It also hardly moves during the treatment process so you can manufacture parts as thin as 2mm and leave only 0.004 for finish grinding.
