Set of Hudy Professional nut drivers with five popular inch sizes. Ultra-lightweight, ultra-durable nut drivers feature superb fit and finish. CAD-designed socket tip, made from world-renown Hudy Spring Steel, very precisely fits the corresponding hex nut without chance of rounding or marring corners.

#170104 Socket Driver 1/4" ( 6.35 MM )
#170308 Socket Driver 3/8" ( 9.525 MM )
#170316 Socket Driver 3/16" ( 4.763 MM )
#170516 Socket Driver 5/16" ( 7.938 MM )
#171132 Socket Driver 11/32" ( 8.731 MM )