About this item Nut drivers' full hollow shafts (except 3/16-Inch [5 mm]) facilitate work on long bolt applications Rare-Earth magnetic tips on nut drivers hold fasteners in place Cushion-Grip handles for greater torque and comfort with color coded handle domes for easy identification Internal flanges provide solid, twist-resistant shaft anchor Made in USA Chrome plated shafts help prevent corrosion Set contains Cat. No. 646-3/16M, 646-1/4M, 646-5/16M, 646-11/32M, 646-3/8M, 646-7/16M, 646-1/2M Features a hollow shank allowing full engagement with nut to hold fasteners securely in place Suits for working on electrical and HVAC/R panels and stacked circuit boards Includes corrosion-resistant chrome-plated shafts and cushion-grip color-coded handles for torque, comfort, and hex size identification Show more