Greenlee 0254-11 Folding Hex-Key Set, 9-Piece Sizes 5/64-Inch, 3/32-Inch, 7/64-Inch, 1/8-Inch, 9/64-Inch, 5/32-Inch, 3/16-Inch, 7/32-Inch and 1/4-Inch One-Piece, powder-coated handle/case for corrosion resistance Laser-etched sizes on case for easy identification Heat-treated and tempered for extra strength and durability Exceeds ASME/ANSI specifications