Adapters -Hex socket set Highlights generic brand Hex socket set Description: Set of 9 hex keys. Chrome vanadium steel forge, high strength. Ideal for home, garage workshop, metal/wood workers, builders, auto mechanics, hobbyists Small size, easy to carry and full specification. Plug Size: 5mm/6mm/7mm/8mm/9mm/10mm/11mm/12mm/13mm. Specification: 5mm: Total length 20mm/0.79inch, Hex outer diameter 7.5mm/0.29inch, Hexagon depth 10mm/0.39inch. 6mm: total length 20mm/0.79inch, hexagonal outer diameter 8.5mm/0.33inch, hexagonal depth 10mm/0.39inch. 7mm: total length 20mm/0.79inch, hexagonal outer diameter 9.5mm/0.37inch, hexagonal depth 10mm/0.39inch. 8mm: total length 20mm/0.79inch, hexagonal outer diameter 10.5mm/0.41inch, hexagonal depth 10mm/0.39inch. 9mm: total length 20mm / 0.79in, hex outer diameter 11.5mm / 0.45in, hex depth 11.3mm / 0.44in. 10mm: total length 20mm/0.79inch, hexagonal outer diameter 12.5mm/0.49inch, hexagonal depth 11.3mm/0.44inch. 11mm: total length 20mm/0.79inch, hexagonal outer diameter 14.5mm/0.57inch, hexagonal depth 11mm/0.43inch. 12mm: total length 20mm/0.79inch, hexagonal outer diameter 15mm/0.59inch, hexagonal depth 12mm/0.47inch. 13mm: total length 20mm / 0.79 inch, hex outer diameter 16mm / 0.63 inch, hex depth 13mm / 0.51 inch. Package includes: 1 Piece Hex Socket Set (9 Pieces) Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slight difference. THANKS