This Mechanics Tool Set is an incredible array of bits, wrenches and sockets. It is a vital component to any artisan or handyman’s workshop. Mechanics Tool Set: One 3/8″ Dr. ratchet handle One 3/8″ Dr.(F) X 1/4″(M) adapter One 3/8″ Dr. 5/8″ spark plug socket One 3/8″ Dr. 3″ extension bar One 1/4″ Dr. bit handle Three 1/4″ Dr. socket (8 point): 1/4″, 5/16″, 3/8″ One 28-1/4″ Dr. socket (6 point): SAE: 5/32″, 3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 13/32″, 7/16″, 15/32″, 1/2″, 17/32″, 9/16″ Metric: 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, 10, 11, 12, 13mm Six 1″ (L) bits: Phillips: #0, #1, #2 (4) #3 slotted: 1/8″, 5/32″, 3/16″, 1/4″, 9/32″