Machine drills square holes in metal.

[CarlS]

I couldn't embed it; you will have to click on the link.

http://www.wimp.com/squareholes/

 

[DaveM]

Your link would not work for but I found this one so i am not sure if it's the same

[video=youtube;tqOe2In9ShQ]http://www.youtube.com/watch?v=tqOe2In9ShQ[/video]

 

[devo]

up, its the same
cool huh

 

[avion]

Yeah, pretty good. Don't know how long that cutter's gonna last though. Looks a bit flimsy.

...

 

[Silli]

Believe it or not, the technique has been around since to 60s.

 

[CarlS]

Your link would not work for but I found this one so i am not sure if it's the same

Thanks, Dave.

Believe it or not, the technique has been around since to 60s.

I did not know that. To me, it is a very interesting technique.