Harbor Freight Safe Mod

I did some modding to my harbor freight safe, apologies for the looks its jank and i am sure i could have done alot better but it works :smiley: Here are the results.

Safe Front

Safe Side

and of course the parts
Safe: https://www.harborfreight.com/037-cubic-ft-electronic-digital-safe-62979.html
Relay: https://www.amazon.com/gp/product/B00LW15A4W/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
RFID Reader: https://dangerousthings.com/product/xem-access-controller/
Possible Button: https://www.amazon.com/MakerSpot-Momentary-Tactile-Breadboard-Friendly/dp/B06XT3FLVM/ref=sr_1_12?keywords=push+button&qid=1584645653&sr=8-12

For the button i used something i had but this button or others like it could possibly work

This is of course my first project for the implant / rfid. Please let me know where and what could be done better.


Omg that safe photo looks like it’s out of Fallout! Awesome shot.


Did i forget to mention that i found the safe in an abandoned nuclear fallout bunker? JK but with a little work i could definitely make it look like that


download (2)

In all seriousness, you are not going to actually keep anything valuable in that are you? Off the top of my head I can think of a multitude of entries into that without a key or keypad.
If you are, there are some things you can do to make it more secure… let me know if you need some suggestions.
is it a wafer or tubular lock? I dont think I have seen them in pin tumbler…


I have mounted it (No room for hammering) and disabled the inner code set button but i have not done anything with the key or magnet prevention. What other things should i worry about and do you have any thoughts on the key / magnet vulnerabilities?

Nice work, You have got most of it covered.
I would also upgrade the spring to heavier tension ( You will need to make sure the solenoid is powerful enough to retract the spring) this would “stop” the Hammering/ shock attack you have already got covered, but that will also assist in “preventing” of the magnet bypass attack.
For the key, If it is a wafer or tubular lock, swap it out for, a still cheap option, but more secure option, you will be looking for a pin tumbler with as many pins that will fit, all of the pins, should be security pins ( This can be done, cheaply and easily ) again if you need help with tips for this, let me know…
All of this can be done for very cheap, to upgrade to a decent security,but obviousy wont be as good as more robust housing, which is where your one will leave its vunerability ( I imagine an angle grinder will cut through it pretty quick )

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I saw a video where a guy used a simple shim to pull back the solenoid… or something like that… can’t find the video now… but it was shockingly easy.

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Ya there are alot of ways to get in but they take time and a normal thief does not want to be sitting at a safe trying to get in it while the alarm is going off and the police are on the way. Just like any product that is meant for security its only there to cause the would be thief more time hopefully mitigating the amount of stuff they have time to steal. But definitely if this safe were to be out in the open and no mods someone could get in within seconds i sure know i did when i was testing. :smiley: I think i got the magnet issue resolved all i need to do is get a better key / core and rekey it for harder picking / bumping but that of course wont stop drilling or sawzall.

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Security Pins my friend and tap a thread

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