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🛡️ Fortify your crypto legacy with indestructible cold storage!
The KEYSTONE Crypto Seed Storage is a fireproof, corrosion-resistant metal wallet made from 304-grade steel, designed to securely store 12 to 24-word BIP39 seed phrases. Its compact, credit card-sized form factor includes three metal plates and keyhole options for physical locking, compatible with all major hardware and software crypto wallets. This durable cold storage solution ensures your digital assets remain safe from fire, wear, and unauthorized access.









| ASIN | B09G2BN199 |
| Additional Features | Temperature Proof, Wear Resistant |
| Best Sellers Rank | #60,280 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #99 in Safe Accessories |
| Brand | KEYSTONE |
| Color | Keystone Tablet Punch |
| Compatible Devices | Ledger Nano X, Trezor, Bitbox, KeepKey, Coldcard, MetaMask, Coinbase Wallet, Electrum, Mycelium, Exodus, Wasabi Wallet, Opolo, Cobo, ZenGo, CoinSmart |
| Connectivity Technology | USB |
| Customer Reviews | 3.9 out of 5 stars 179 Reviews |
| Flash Memory Type | USB memory stick |
| Hardware Connectivity Technology | USB Type A |
| Hardware Interface | USB |
| Item Type Name | Crypto Seed Storage |
| Manufacturer | Keystone |
| Memory Storage Capacity | 1 MB |
| Mfr Part Number | KT003 |
| Model Name | KEYSTONE |
| Model Number | KT003 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Special Feature | Temperature Proof, Wear Resistant |
| UPC | 721042259361 |
P**O
Quality product
It’s straight forward, metal plates, good quality, hopfully ill never have to see if they survive a fire. Metal lunch that comes with it works fine all be it low quality. I purchased a nemco for less than $10 but the one that’s included works just fine.
B**N
Preliminary review
Not a full review but just some things i've noticed that some people will want to know about. -It is thick and heavier than expected. Definitely not something you want to carry around but i like that it feels so substantial. -The included punch is unreliable. Doesn't always spring actuate. 50% success rate -Even though it's made out of steel, it's not very magnetic. If you put your average fridge magnet on it, it will barely stay on. If you use a rare earth magnetic, it will stick better but is still very weak. So if you're thinking of hiding this wallet somewhere using a magnet, then this is not the wallet to get.
T**Y
Good plates, bad punch
Nice concept and quality steel plates. The punch is a problem. It worked well for the first few words but then failed. I found unscrewing the different components and then applying very slow, steady pressure helped it to work better, though I had to do that several times throughout the process. I suspect the failure has to do with a misalignment of the internal piston. So, be patient with the punch or have another punch to use to mark the plates.
U**R
Worthless punch tool, extremely difficult to mark without it
0/5 Worthless (worth less than less) puncher made it IMPOSSIBLE to mark the letter boxes. The metal is also too hard to drill out with a standard bit, requiring specialty carbide burrs -- an additional expense. Normal bits become ruined. Punching with a dye is also a huge headache, especially in an environment like an apartment. Cannot possibly recommend this product enough to anyone who likes to be screwed over by big corporations that sell you a theory instead of a usable product.
S**N
Gold metal board with a trash pen
The board is good but pen is not working functioning well.
E**N
Our favorite key preservation method
Excellent quality steel. Great thickness. The punch pen performed well. After trying many methods of key preservation, this one from Keystone we found the most reliable and effective.
T**0
tool failed
Why did you pick this product vs others?: The tool failed on the fourth punch. I took it apart and used the pin with a small hammer. Without a lock on it the wallet doesn't actually stay closed and the plates scratch easily. Obviously, more durable than paper. The issue is, now I am thinking about buying a different metal wallet as a back up incase this one gets damaged. I shouldn't need a back up for the back up.
S**.
Real nice
Nice
G**S
Better to get those with physical letters
The metal punch wont work after a few tries. I have two and both failed. Ill just use a hammer and nail.
M**B
Più che soddisfatto!
Ho acquistato il Keystone Tablet Punch per proteggere le seed phrases, e non potrei essere più soddisfatto della scelta fatta. Realizzato in acciaio di grado 304, questo dispositivo offre una resistenza meccanica non indifferente, rendendolo praticamente indistruttibile. La sua capacità di resistere a temperature elevate, ben oltre quelle di un incendio domestico (testato con un cannello ossidrico), è un ulteriore vantaggio che mi ispira sicurezza riguardo alla conservazione del mio seed. Il design è semplice ma ben studiato: le tre piastre consentono di organizzare le prime 4 lettere di ogni parola in modo chiaro e sistematico, e la possibilità di chiudere il tutto con un set di 3 lucchetti di dimensioni differenti (anche se non inclusi) è un plus non trascurabile. Il materiale di cui è fatto, inoltre, resiste tranquillamente alla corrosione causata da acqua o altri liquidi. Infine, la facilità di utilizzo è notevole. Le istruzioni sono chiare e coincise, ma serve dedicare un po' di tempo e attenzione al corretto punzonamento delle parole. Inutile dire che, in caso di errore, non si riesce a cancellare tutto e ricominciare da capo.
A**L
Only 4 letter words
Very nice!
M**I
Pratique mais pointeaux de mauvaises qualités
Les plaques pour noter sa phrase sont vraiment de qualité et donne confiance pour tenir dans le temps. Le problème c’est le pointeaux pour noter sa phrase au bout de seulement 2 lettres noter le bout s’aplatit déjà se qui réduit considérablement l’écriture sur la plaque métallique obliger de s’y reprendre plusieurs fois c’est dommage.
W**G
Frozen wallet
The material used for the wallet is of good quality but the tool provided was not. The tool (dot punch) did not last the entire job. Needed to purchase a replacement manual tool.
Trustpilot
1 month ago
2 days ago