Keyway clean up file

Ordinarily I hold files as tools that are a cut above being subjected to my ingrained nature to modify just about any tool to suit my needs.
However, a sprocket I had cut a keyway in still lacked just a scooch more depth after broaching it on my lathe using the carriage like a shaper. I could have returned it to the lathe but I already had another setup in it so I decided to just file out the remaining bit the only problem was to do this I either had to use a much smaller narrower file than the keyway or transform another file into a special purpose tool.
Attachment 43440
Attachment 43441
At least it was an older file but still sharp

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Thanks Frank S! We've added your Keyway Cleanup File to our Filing category,
as well as to your builder page: Frank S's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-keyway-cleanup-file"> <img src="/uploads/256019/homemade-keyway-cleanup-file.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-keyway-cleanup-file">Keyway Cleanup File</a> <span> by <a href="https://www.homemadetools.net/builder/Frank+S">Frank S</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/file'>file</a>, <a href='https://www.homemadetools.net/tag/keyway'>keyway</a> </div> </div> </div> </div>
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