... .More efficient grinding . 2.Grinding wide use for metal. 3.BEST quality Tungsten carbide board for punch dies,stamping dies, step dies Grade Performance ... High bending strength,used for step dies and other stampings dies.YM2T14.5 2350 92.0 Fine carbide, High wear resistance, ... .Any question, pls feel free to contact me via email. Tungsten carbide flat board for punch dies,stamping dies, step dies