16 4 x 5 7 8 July 8, 2019 16 32 64 128 3 5 16 x 4 7 8 4 16 8 * 2 7 *( x 5 )+ 11 4 x 5 8 2 7 16 16 x 4 5 x 12 3 8 x 7 5 3 4 x 3 16 x 7 8 grinding wheel 4 5/8 x 16 5/16 = x/48
