12 point Sockets have Maxi-Drive™ system for increased grip. Three way quick release ratchet handle. 1/4 in.Ratchet . 1/4 in. Spinner handle . 1/4 in. Extension bar -3 in. . 1/4 in. Sliding T-Bar . 1/4 in. Universal joint . 1/4 in. Bit holder (adaptor) .