Thorsen Tools Dog Bone Wrench - SAE, Model# 22-400 8 SAE socket sizes: 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 and 13/16 inch Cr-Mo steel for strength and durability Go-thru swivel head allows for easy access Swivel head fits all angles Magnetic plug or nut holder