First off, you need an opponent to fight with (I recommend average health enemies). Secondly, You need to have the Tool Kit Skill equipped. Take a hit on your opponent with the Wrench Melee twice (You don’t need to keep pressing the hotkey; It’s automatic). Before the third hit of the wrench occurs, Quickly equip your elixir gun OR flamethrower, and it will unleash an uppercut with either weapon you have chosen. However, I do believe the damage does not change of course. It should be the same amount of damage as any other wrench hits.
