Kobalt's compact, mixed-drive set contains popular 1/4-in and 3/8-in drive bit driver sockets and external star sockets to help complete many small jobs at home and at work. This 37-piece set includes a variety of hex, Phillips, slotted, Torx (r) and external Torx (r) bit driver sockets - please click the Dimensions Guide link to the right for a full set components list. Constructed of chrome vanadium steel and head treated for strength and durability. Socket size callouts are hard-stamped for long-lasting identification. Clear lid case provides a view of each socket. Case measures 2.15in H x 4.78in W x 8.62in D and easily fits in most toolboxes and kitchen drawers. Meets or exceeds ANSI specifications. Covered by Kobalt's hassle-free lifetime guarantee