Klein 7/16 In. Heavy Duty Magnetic Tip Hollow Shaft Nut Driver Breadcrumb Home / Products / Parts / Tools and Instruments / Hand Tools / Nut Drivers Loading... Customer Part Number: KLE-635-7/16 Brand: Klein Hex Size (In.): 7/16 Shank Length (In.): 6 Tool Length (In.): 9-2/5