Grades / Varieties The cashew nut kernels classification is as follows: Whole (W) grades (count of kernels per lb): W180 (140-180) W210 (180-210) W240 (220-240) W320 (300-320) W450 (400-450) Broken grades (the main grades are only mentioned in the first colour grade): Butts Splits LWP (Large White Pieces) SWP (Small White Pieces)