Broaching a Double D Hole

To put the foot pegs in the right place, I had to make new mounts, with a Double D hole to locate the peg and fix it at the correct angle. A broach seemed the best way to shape the hole, so I made one. Picked a bolt that looked big enough, hammered it into the wedge shape in the picture, prepared the hole per the sketch, and shoved the broach through the workpiece with the 20 ton press. A little bit of hand finishing with files, and the job was done.

Attachment 47231Attachment 47232Attachment 47233Attachment 47234

<!-- BEGIN /var/www/html/homemadetools/protected/modules/zeus/views/tool/postUpdate.php -->
Thanks fool injector! We've added your D Broach to our Metalworking category,
as well as to your builder page: fool injector's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-d-broach"> <img src="/uploads/262778/homemade-d-broach.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-d-broach">D Broach</a> <span> by <a href="https://www.homemadetools.net/builder/fool+injector">fool injector</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/broach'>broach</a> </div> </div> </div> </div>
<!-- END /var/www/html/homemadetools/protected/modules/zeus/views/tool/postUpdate.php -->