... .Used in making all kinds of planner knife, 2.Flat, bars,heat treatment High speed steel(W18,W9,W6,W5,W2)Planer ... knife1.Main applicationUsed widly in making all kinds of knife, also for ... deliver condition,without sawing or cutting 5.Steel grade: W18=T1 W6=M2 HSS for Making Knife(W18,W9,W6,W5,W2)