[7 & 64 ]
[.035]
[3 & 32 ]
[1 & 16 ]
[.050]
[5 & 32 ]
[5 & 64 ]
[.028]
Hex key wrenches are tools used to Tighten or Loosen a screw with an internal hexagon drive or hex socket. Most common screws include Socket Head Cap Screws, Button Head Cap Screws, Flathead Cap Screws, and also Socket Set Screws.