The most likely keybind for Utility 1 in Roblox Operation One is L1 on controller or the corresponding utility slot key on keyboard, but the public results I could access don’t show a clean official keyboard mapping for that specific slot.

What I found

  • Operation One community pages mention utilities as a distinct item category, but not a full keyboard binding list for “Utility 1”.
  • A controller control post for a similar Roblox tactical shooter shows L1 = Equip Utility and R1 = Equip Gadget , which suggests utility is often bound to the left bumper on gamepad.
  • I couldn’t verify a definitive keyboard key for “Utility 1” from the accessible sources, so any exact keyboard answer would be a guess.

Practical answer

  • On controller : try L1 for Utility 1.
  • On keyboard : check the in-game controls menu, because the public sources available here do not confirm the default key.

Quick note

If you’re asking because the game isn’t showing the bind clearly, the safest move is to open the controls/settings page in-game and rebind Utility 1 manually.