33396 is a 25 piece 1/4inch drive professional standard and deep socket tray set (SAE). Wiha crafted professional series sockets and ratchets are engineered with Wiha premium-quality tool steel for strength and durability with a chrome-plated satin finish for corrosion protection. Wiha's professional series sockets are available as 6 point - 1/4" drive, 12 point - 3/8" drive, and 12 point - 1/2" drive configurations and feature roll-stamped die markings for clear identification, a knurled band for extra grip, smooth broached and clear-coated openings for added protection against rust and corrosion, radiused corners for preventing fastener head round-off, and four-side detent grooves with beveled rim for easy and secure drive engagement. Set includes: standard SAE 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, deep SAE 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 1/4" Dr. ratchet 72 tooth, 1/4" Dr. extension bars 3", 6", and 1/4" Dr. universal joint.