#12–#14, 3/8–7/16", SAE spline ratchet box wrench

Specifications: Dimension E, Length, inches: 6-7/8; Dimension C, Head Depth, inches: 1/2; Country of Origin: USA; Gear Teeth: 17-18; Dimension A, Head Diameter, inches: 1-1/6; 4-1-5/32; Finish: Chrome; Hex Size, inches: 3/8-7/16; Spline Size (SAE): #12-14 (3/8-7/16"); Warranty: Lifetime warranty, non-repairable, guaranteed for materials and workmanship/while the purchaser owns the tools. Warnings: For complete warning information, see CAT1600 pages W1-W4. WARNING: This product can expose you to chemicals, including lead and lead compounds, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov