UNLIMITED DRIVING POTENTIAL: Multi-purpose adapter makes the sockets compatible with the Klein KNECT system DEEP WELL IMPACT SOCKETS: Socket Set includes five deep well, color-coded impact flip sockets, eight color-coded low profile sockets, and six adapters SAE SOCKET SIZES: 1/4 x 5/16, 3/8 x 7/16, 1/2 x 9/16, 5/8 x 3/4, and 11/16 x 13/16-Inch deep well sockets, and 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, and 9/16-Inch low profile sockets QUICKLY CHANGE SOCKETS: Three smallest sockets (1/4-Inch to 9/16-Inch) are stackable on 650QSAL shaft reducing the number of tools required KLEIN KNECT COMPATIBLE: Features specialized square drive adapters for seamless compatibility with the Klein Tools Pass Through Socket Wrench (Cat. No. 65400) and any 3/8-Inch square drive ratchet