4-letter sets, page 3 of 4
400 sets of 4 letters, from AIPS to BEOT, with the longest word each one spells and how many words it makes in total. Letters are listed alphabetically, so sort your own rack into the same order to find it.
More 4-letter sets
Other rack sizes
Holding letters that are not on this page? Type them into the unscrambler and it solves any rack up to twelve tiles on the spot, or start from the full letter-set index.