| Model： Hexagon Keys |
| Features： Used for assembling or disassembling all kinds of hexagon socket screws. |
| According To： JIS B4648 ANSI/ASME B18.3 |
| Material： Alloy Steel |
| Material： HRC 45~52 |
| Surface Treatment： Black Oxide |
| Specification：JIS：M0.9~M19 ANSI：W3/64″~W3/4″ |