T1-HSS is an even longer wearing grade. 18% tungsten grade for 20% more tool life over M2-HSS
T1-High speed steel is a popular European grade with high levels of Tungsten (18% W). Wear great in long runs and resists heat dulling. 64 Hrc hardness. Note 5/16" thickness has a European Face bottom bevel to fit deeper into German made cutterheads.
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