6061-T651 plate starts at .25" thick and with the exception of .3125", it comes in 1/8" increments up to 1.5" thick and
then comes in 1/4" increments up to 3.5". After that, it is available in 1/2" increments up to about 8". With plate,
similar to round bar, the thicker the size, the looser the mill tolerance will be and the more you should anticipate will
need to be cleaned up. The thickness tolerance range is approximately .023" on 1/2" plate and .075" on 3" plate to
give a rough idea.