How you could actually drill a square or hexagonal hole in something, using a circular drill? Well wonder no more!
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Mike
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Mike
Ducklakeview said:How you could actually drill a square or hexagonal hole in something, using a circular drill? Well wonder no more!
[youtube]rjckF0-VeGI[/youtube]
Mike
Machine monkey said:Seems long winded and very restrictive on what sizes you can do.
Much better off not spending £500 plus quid on a drill press and buy a second had milling machine for a bit more.
rally-chris said:Actually it's very useful in the real world of mass production! Like most production processes for repeated production of the same part or feature, fixed sized tooling/cutters are used so rotary broaching is not unique. Even in low volume manufacture, we used it at my last company it for creating internal hex profiles in components and assembly tooling for racing car gearboxes. Our customers wouldn't be too impressed with hand filed corners, and with a hex in particular you want an accurate shape in the corners as that's where the drive takes up.
Fair point its been a while since i left that type of industry.