OOC:
Hey @McButterpants - RAW this might be an OBSERVATION roll or something like that, or require several minutes searching for a random object.
But the point is to have fun here, and I reckon it's not unlikely there'd be a huge wrench lying around here. So yes, you got one you can pick up if you want to.
Having said that, with this stress level, almost any Panic Roll is going to negate your action - you'd have to roll a 1 on the die on the panic roll to be able to keep any successes you got to your action (you're at STRESS 8, so you'll roll 1d6+8, and all results 10+ replace the intended action with a Panic action. So if you roll any 1s on the 8 STRESS dice, it's unlikely you'll be able to get an attack off.
This is meta, but also it's representing Macwhirr being unspeakably stressed and terrified atm.
So your choice whether you pick up the huge wrench (a Fast Action - it'll be Damage 1 if you hit) and swing with it (Slow Action), or crawl away and maybe try and get the inner door open or something like that.