Channellock 7-Piece Professional Nut Driver Set Nickel chrome finish for exceptional corrosion resistance. 3 In. inch hollow shafts for clearing long thread applications. Heat-treated alloy steel shaft. Color coded handles for easy size identification. High torque acetate handles for superior durability and solvent resistance. Set includes 1 each N316A 3/16 In., N140A 1/4 In., N516A 5/16 In., N132A 11/32 In., N380A 3/8 In., N716A 7/16 In., N120A 1/2 In. Type Standard, Pieces In Set 7 pcs, Finish Chrome, Pkg Qty 7, Package Type Clamshell Warning This product can expose you to chemicals including nickel which is known to the state of california to cause cancer. For more information visit www.p65warnings.ca.gov