Grades Content A ~ P Grades B B1 ~ B14 Coated Grades Coating Series............................................................. B2 CVD / PVD Series ....................................................... B3 - 4 Coated and Uncoated Cermet.......................................................................... B5 Uncoated Carbide “Igetalloy”.................................................................... B6 CBN Grades “SUMIBORON”............................................................. B7 - 8 PCD Grades “SUMIDIA”.................................................................... B9 New “SUMIDIA” Binderless................................................ B10 Chart Grades Comparision Chart .......................................... B11-13 Properties of Base Materials ........................................ B14 B1