The Delo Tekhniki 511896 wrench set is designed for working with various types of nuts. The set includes 16 straight wrenches. The sizes of their working profiles range from 1 to 1-1/4 inches. The tools in the set are made of 6140CrV chrome vanadium steel with a protective nickel-plated coating. The material is resistant to corrosion and does not deform under mechanical stress. The Delo Tekhniki 511896 wrench set is packed in a tetron roll-up pouch, which ensures convenient storage and transportation.