This is a Precision Nut Driver by DuraTrax. Hardened Chrome Vanadium shaft & end adds strength and durability. Rubberized handle with textured finger grip combines comfort with a slip-free hold. Top of handle has flats on both sides so it won't roll away when set down on a work surface. Tapered handle allows rapid rotation. Color coded (Blue), finger pivot cap for easy identification and precise finger-tip control. The size is printed, in White, on the Black handle. Comes in a clear plastic cover on a peg board header card. One Precision Nut Driver Socket Size: 7mm Shaft Length: 75mm Overall Length: 175mm Handle Top Flats: 15mm and 20mm DuraTrax precision tool caps are color coded as follows: COLOR CODE: Red = Precision Slot/Phillips Screwdriver Yellow = Precision Ball Hex Driver Blue = Precision Nut Driver JAL 7/20/00 ir/jl kr3/13/03 &