The DEWALT 6-inch Magnetic Nut Driver Set includes three pieces with diameters of 1/4 inch, 5/16 inch, and 3/8 inch. Made of magnetic steel, these yellow band nut drivers feature a 1/4-inch HEX quick-disconnect shank for easy bit changes. This set is designed for standard SAE measurements and comes with a manufacturer's warranty. Ideal for various home and workshop projects, this nut driver set from DEWALT offers convenience and reliability.