Genius Tools 376319, Deep Hand Socket 19/32 Inch 3/8 Inch Drive 12-Point High-Strength Steel. 3/8" Inch Drive Size with an overall length of 63mm (or 2.48 Inches). Made from Chromium-vanadium Steel Alloy for high strength and durability while having anti-corrosive properties. Sizes are stamped for permanent and easy identification of size.