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This is not my idea, I just want to share with u.

Sand the used toothbrush and stick sandpaper on it with double-sided tape.

Then it become a simple files and specially good for sanding plastic model.

Remarks

u can also stick sandpaper on popstick or a piece of acrylic sheet.

Have fun !
<p>not exactly files, more like sanding blocks, i have dome same thing with a vibrating toothbrush and one with an old battery electric toothbrush so it rotates, both have a thin sponge between the sanding surface and the former brush head.</p>
<p>Thx, I don't know the exact wording of this item, but I found that &quot;nail file&quot; is similar to this, so I called it &quot;file&quot;, maybe I change it to &quot;nail file&quot;.<br><br>For the the electric one, here are the commercial products for your interest.</p><p>http://www.mr-hobby.com/itemlist/pg48.html</p><p>GT08 電動コードレスポリッシャーⅡ</p><p>GT07 Mr.ポリッシャーPRO </p>
<p>well its more an emery board, a nail file is still a metal file. emery board is pretty much sandpaper or emery cloth glued to a stick X3</p>
<p>I thought that nail files may either be emery boards, ceramic, glass, crystal, plain metal files.....</p><p><a href="http://en.wikipedia.org/wiki/Nail_file" rel="nofollow">http://en.wikipedia.org/wiki/Nail_file</a></p><p>Thx again, I add &quot;emery board&quot; for convenient.<br></p>
<p>Good idea! Thanks for passing it along.</p><p>BTW, the word &quot;file&quot; works for me. IMHO, it became a file when you attached the abrasive to a handle.</p>

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