Popular assortment of jumbo style combination wrenches manufactured from high alloy steel using the most up-to-date manufacturing processes and heat treat to optimize strength and durability. These precision made wrenches can handle just about any fastening application. Made with industrial quality S45C alloy steel. Extra heavy drop forgings and premium curved shaft edges ensure maximum strength and comfort even under extreme torque. Wrench size stamped on head for easy identification . Raised panel design. Box ends feature a true 15 offset for clearing obstructions and knuckle clearance on flat surfaces