Genius Tools 665225, Impact Socket 25/32 Inch Size 3/4 Inch Drive Chrome Molybdenum Durable Heavy-Duty. 3/4" Inch Drive Size with an overall length of 51mm (or 2.01 Inches). Made from Chromium Molybdenum Alloy Steel for high strength and durability while having anti-corrosive properties. Sizes are stamped for permanent and easy identification of size.