7 3 x 4 16 8 July 8, 2019 16 32 64 128 3 7 8 x 4 5 16 3 x 4 16 2 x 8 7 5 3 4 x 3 16 x 7 8 grinding wheel 7 3/4 x 4 3/8 7 - 3/4 x = 16
