SAE 5/16" 8-point double square drive socket with 3/8" drive

Characteristics
• 8-point configuration and Flank Drive® key system
• Snap-on® sockets that utilize the Flank Drive® system grip the fastener on the flanks/faces, providing 15-25% more turning power
• Manufactured with patented, high-quality steel, providing optimal strength and durability
• The chrome/nickel alloy finish resists rust and corrosion. Specifications: Dimension C, Bolt Clearance Depth, 3/8 inch; Size, 5/16 inch; Country of Origin: USA; Dimension A, Socket End Diameter, 9/16 inch; Dimension B, Drive End Diameter, 21/32 inch; Finish: Chrome Plated; Dimension D, Length, 27/32 inch; Dimension E, Opening Depth, 1/4 inch; Style: 8-Point Warranty; Lifetime Warranty, Non-Repairable, Guaranteed for Materials and Labor/While the Purchaser Owns the Tools; Warnings: For complete warning information, see CAT1600 pages W1-W4