Precision 3D-Printed Jig for Letter Stamping Washers
Product detailed description
Plastic jig that ensures precise letter placement on M8 washers. Ideal for building your indestructible metal Bitcoin seed phrase backup.
Here's how it works: Use our 3D-printed jig and letter stamps to precisely engrave your seed phrase onto durable metal M8 washers. Secure the washers with a nut and bolt. Store the recovery backup in a discreet, secure location.
Please note that the M8 washers, nut, bolt, and letter punch set are not included, but they're readily available and inexpensive at any local hardware store.
Make several affordable, durable metal recovery wallets for yourself and friends. These extra backups ensure cryptocurrency recovery even if some wallets are lost. Keep them in different, hidden locations. Always use a strong passphrase.
This solution includes:
- 1 custom 3D-printed jig: Ensures precise letter placement on the washers. Ideal for stamping M8 washers and reusable for future projects.
Why choose our precision 3D-printed jig:
- Simplified Setup: Features an intuitive design for effortless and rapid configuration.
- Cost-Effective: Washers are readily available and inexpensive at local hardware stores.
- Versatile and Reusable: Enables creation of unlimited recovery backups. Tools can be shared or used for various labeling projects.
- Fast and secure shipping: The item will be shipped via registered priority mail.
You will also need the following items, which are not included:
- M8 washers, 24mm outer diameter: One seed word per washer, or two if using both sides.
- M8 nut and bolt: Used to fasten the punched washers together.
- Letter stampers with 3mm or 4mm letters (1/8" or 1/6") on a 6mm wide shaft (0.24 inch).
- Hammer: For punching the seed words into the washers.
- Hard surface (steel or concrete): Provides a stable base for stamping.
Compatible with:
- BIP39 and SLIP39 standards (supports 12, 20, and 24-word seed phrases).
- Popular hardware and software wallets like Trezor, Ledger, Tangem, Coldcard, Keepkey, BitBox, KeyStone, CoolWallet, Keevo, SafePal, OneKey, SeedSigner, Electrum, Exodus, Phoenix, Trust, Mycelium, Coinomi, Atomic, MetaMask, Samourai, BlueWallet, Wasabi, Cobo etc.
Additional tips and instructions:
- Stamp each word of your seed phrase onto the washers using the provided tool.
- If you do not have number stamps, label the washers with letters at the top (A=1st, B=2nd, etc.) to indicate the word order. See sample ("B CRYPTO" meaning the 2nd word is "crypto") in the item images.
- Secure the washer in the jig with tape from the bottom to prevent rotation during stamping. The tape is not included.
- Position the insert in the jig, select the letter, insert the stamp, and strike firmly with your hammer.
- Rotate the insert in the jig and stamp the next letter.
- Remember to purchase a few extra washers for practice and corrections.
- A 30-35mm long bolt is sufficient for securing 12 washers (2mm thick).
- Always use a passphrase with your seed phrase. Strong passphrase protection may significantly delay unauthorized access.
- To make more copies of your cold wallet, simply get extra washers, nuts, and bolts, and reuse your punches with the 3D-printed jig.