Features and Benefits: Chrome vanadium and chrome plating; Upgraded steel from High Carbon to Chrome Vanadium; 30% more strength and durability; Chrome plating to prevent rust, corrosion and deformation; 97732A 1/2″ Dr. 1″ Jumbo Crowfoot Wrench 97734A 1/2″ Dr. 1-1/16″ Jumbo Crowfoot Wrench 97736A 1/2″ Dr. 1-1/8″ Jumbo Crowfoot Wrench 97738A 1/2″ Dr. 1-3/16″ Jumbo Crowfoot Wrench 97740A 1/2″ Dr. 1-1/4″ Jumbo Crowfoot Wrench 97744A 1/2″ Dr. 1-1/2″ Jumbo Crowfoot Wrench 97760A 1/2″ Dr. 1-3/8″ Jumbo Crowfoot Wrench