The 1/4 inch kit has SAE sockets from 3/16 to 9/16 of an inch and metric sockets from 5 to 14 millimeters. The 3/8 inch drive kit has SAE sockets in sizes from 5/16 to 13/16 of an inch and metric ...

I’d almost never consider a kit built around a 1/2-inch drive. Something like this Craftsman V-Series 21-Piece 1/2-inch socket set can change that tune. Versatility is the name of the game here.