It's an ongoing joke that we share with our customers, but your best
bet is to lock up your tools (inside of the safe). Most criminals are not carrying plasma cutters with them. They will either take the entire safe to where they have the tools, or use the tools found near your safe. If they can't get to your tools, you're already one step ahead.
__________________
Not such a joke, I have a GS-6 combination file safe cabinet in my shop for just that purpose. I was able to fit my 10 ton hydraulic ram kit, my portable plasma cutter and the extension cords that could reach my gun's secure storage from my 220 50 amp outlets in the shop so they won't be able to just roll the bigger cutter through the house and use it. I set a pepper spray bomb in the shop that'll make anything that moves in there too miserable to break into that file safe.
It's tough for anyone to justify the expenses of really good secure safes. Most of the gunsafes on the market are just not worth their $1000. - $3000. pricetags and there's no single answer to burglary anyway. No safe that will stop a determined and knowledgable burglar. Don't assume that all home invasions are committed by dufus druggies with skinny white needle tracked arms. There are people who make a career of it and act like professionals do in other technical fields.
Adjust your thinking to compensate for not wanting to budget a jewelry store vault like safe. I've been turning my whole house into a maelstrom - a burglar's bad day.
I've set up a combination of secured areas, a network of misery I like to call it.
I've put grade 2 locks on every door in the house so they think there's something good to steal in each closet and bathroom. I bought fifteen keyed alike Schlage entry locks in ebay for $14. each shipped and have them on every door in this house - even the linen closet. We don't, of course, lock them when home. I just liked the idea of the burglar having to do his burglary thing over and over, just to find out what's behind the door.
Use solid doors, not hollow cores and put grade 1 deadbolts - preferably two of them at entry points. Take a look at a device called "The Ultimate Lock".
A good alarm system with sirens and bright strobes coming from at least one place in every room. 'Burglar Bombs' at selected locations where you want extra deterance. It's really amazing what kind of thing you can do if you put together your own alarm, and there's full time monitoring available for about $9.00 a month that's at least as good and probably better than anything provided by the major players for four times as much on contract.
My "den" or inside shop, or whatever this is called has the gunsafe and IS the gunsafe too.. I got tired of having to lock up my beauties every time we left. I've been building this room up over five years to be the most secure area in a pretty secure house and I think that by the time some burglar gets to this room he'll be half crazy from noise, flashing lights, locks everywhere and his own frazzled nerves that he'll take one look at the door that looks like a mideivel oak and steel bolted together torture chamber door that he'll decide to forget it and haul out of here if he still has time before the cops get here.
If someone breaks into my house while my wife, dog, and I are gone they're going to think they fell into the depths of Hell. The cops will catch them at the bottom of my driveway and be forced to 5150 them because of their incoherent babbling, their deafness, and their inability to breath.
If I could use concussion grenades without wrecking things in here they'd be bleeding out of their ears too.
I've made a hobby out of my imaginary burglar's miserable encounter here, and keep adding new traps as I think them up.