Triangular-headed screwdriver

Attachment 45820
I just have to undo some small screws, with an equilateral triangular recess, from a piece of electronic equipment, so I can get at the transformer inside.
Although it’s usually possible to undo these with a flathead or slot screwdriver, these were in a bit tight. So I took a spare 3-square tapered file, and just ground a slight flat on each face of the tip. The handle is also spare, turned from cherry. I did not temper the file.
Is anybody going to tell me that I mustn’t do that sort of thing?Attachment 45823

<!-- BEGIN /var/www/html/homemadetools/protected/modules/zeus/views/tool/postUpdate.php -->
Thanks Philip Davies! We've added your Triangular-Headed Screwdriver to our Fastening category,
as well as to your builder page: Philip Davies's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-triangular-headed-screwdriver"> <img src="/uploads/259898/homemade-triangular-headed-screwdriver.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-triangular-headed-screwdriver">Triangular-Headed Screwdriver</a> <span> by <a href="https://www.homemadetools.net/builder/Philip+Davies">Philip Davies</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/screwdriver'>screwdriver</a> </div> </div> </div> </div>
<!-- END /var/www/html/homemadetools/protected/modules/zeus/views/tool/postUpdate.php -->

By the way. I once cut a screwdriver and ground the desired triangle. But the triangle screws were quite tight(ened?) (toaster) and let my screwdriver suffer. Then I adapted the tip of a small file and attached a substantial handle. But this project must have exhausted my brain then: After the toaster repair I put the triangle screws again.

FWIW, many of the 4mm driver kits, such as this example...

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

contain several sizes of triangular bits.

No, you wouldn't buy such a kit solely for the triangles, but such a kit is invaluable if you work on small devices often.

Everyone should have a set of tamper-proof bits...

Quote:

---

Originally Posted by IntheGroove

Everyone should have a set of tamper-proof bits...

---

I call it proactive tool acquisition. Buy an inexpensive tool capable of addressing many potential uses. Even if it's not used, which is unlikely, having it ready provides a form of comfort.

Ingenuity at work. Modifying one tool to into another to solve a problem. Very good Philip.