using aluminium foil to sharpen an already sharp knife.
Just Sharpen The Knife With A Foil/High Level Inventions#amazing
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マグカップだけを使用してナイフをかみそりの鋭さに研ぎます
Turning Aluminium Foil into a Knife
母のすごい技 - アルミホイルの使い方 - 包丁をカミソリのように鋭く研ぐ
CUT Aluminum Foil into Pieces and WATCH WHAT HAPPENS!! 💥 (GENIUS)
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Aluminium foil into a knife #Aluminiumknife #makingknife
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⛔Why I don´t Know this! How to make Sharpen a Knife or a Razor Sharp with Aluminum Foil