The screwdriver in Canadian Simulator appears to be tied to the car customization/update menu: one community answer says you need to buy the sight, then press J to open the customization menu and attach it there.

What to try

  • Buy the sight first.
  • Press J to open the customization menu.
  • Look for the screwdriver or related attachment in that menu and equip it.

Note

Community posts and short-form videos about the item are circulating, but the clearest specific instruction found is the sight + customization menu method above.

If the menu option still does not show up, the item may have been moved in a recent update or renamed, since player reports on the game are inconsistent.