Many moons ago. !hi Max,
Have you ever watched on TV, 'This Old at House', presented by 'Norm'.?
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I must have missed that boat!hi Max,
Those square hole drilling bits were used to build the 'Arc'.
It really depends on one's definition of "square" since most people don't think a square hole needs to have the radius of the corners defined.
You can drill a square hole with a three sided drill
The video on utube shows the real square holeIt really depends on one's definition of "square" since most people don't think a square hole needs to have the radius of the corners defined.