7-piece nut-driver set is a general-purpose selection of the most frequently used nut drivers. Full hollow shaft (except 3/16" [5 mm]) designed with Rare Earth magnetic tip facilitate work on long bolt applications. Cushion grip handles allow for greater torque and comfort. Tip-Ident® quickly identifies nut driver hex orientation and size by color coding the handle ends so you can easily engage the nut driver with the fastener.