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Hi!
For piano enthusiasts that's a tuning key. I bought from Aliexp the socket (common size is 2, for Petrof also 1 could work). The original thread was a 10x1mm, not very common here, I decided to machine and tap the standard M12. I decided to use a 316 round bar, pretty long to have control.
With a bit of rubber stopper and a good app is possibile to keep the piano in tune at home.
Attachment 49379 Attachment 49380
Attachment 49381 Attachment 49382
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Thanks rendoman! We've added your Piano Tuning Key to our Miscellaneous category,
as well as to your builder page: rendoman's Homemade Tools. Your receipt:
<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-piano-tuning-key"> <img src="/uploads/275888/homemade-piano-tuning-key.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="https://www.homemadetools.net/homemade-piano-tuning-key">Piano Tuning Key</a> <span> by <a href="https://www.homemadetools.net/builder/rendoman">rendoman</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/key'>key</a> </div> </div> </div> </div>
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