Universal screw modification fixture

摘要

I'm sure you are aware of how difficult it is to hold any machine screw to modify it, especially very small ones, and in particular countersunk one's. I believe the universal screw modification fixture, I have developed, addresses most of the known problems. For this article, I have used an M6 size thread to explain the principles of the fixture and its manufacture, but any size thread can be accommodated, up to the limits of the fixture.