10 feet and 8 feet to provide clearace for the tool joints
Chat with our AI personalities
It depends on the information that is available to you.
Given the available information, the length and width are indeterminate.
There is no formula that can be based on the information available.
Surely, it depends on the amount of land available for such a community project?
No, because the answer depends on what you are drilling through and why. Drilling a guide-hole through a wooden plank is somewhat different from drilling for an ice core in the polar regions or for minerals underground. So the question is so poorly specified as to be unanswerable.