OIT1491 Features: * Full hollow shaft design with rare earth magnetic tip * Full hollow shafts facilitate work on long bolt applications * Cushion grip handles allow for greater torque and comfort * Internal flanges provide solid, twist resistant shaft anchor Chrome plated shaft helps prevent corrosion.Set contains Cat. No. 646-3/16"M, 646-1/4"M, 646-5/16"M, 646-11/32"M, 646-3/8"M, 646-7/16"M, 646-1/2"M. * 7 Piece Magnetic Tip Nut Driver Set Color/Finish: * Handle domes are color coded for easy identification Warranty: * Lifetime warranty does not cover abuse