SU312ZUM Features: -Forged from the finest chrome molybdenum alloy steel - the best choice for strength and durability. -Radius corner design - to extend the life of fasteners. -The design drives the side of the fastener instead of the corner. -Provides increased strength, but also avoids rounding of rusted or damaged fasteners. Generic Dimensions: -3/8'' Drive 12 Point Universal Impact Socket for Ford Driveshafts. Dimensions: Overall Height - Top to Bottom: -1 Inches. Overall Width - Side to Side: -1.2 Inches. Overall Product Weight: -0.2 Pounds.