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I think they would take a copper chisel of various widths, and slowly rotate it on the granite to drill the desired sized hole, the chisel would may or may Not have a strait across flat edge, The wooden made for this technique, would be the same width as the copper chisel blade, so as blade went in, the wooden handle would act as a guide so the chisel would go, Strait through. They would spin this assembly with both hands, thus making it act like a drill. They would also then obviously lengthen the wooden handle to continue the hole depth as deep as they needed to go. I will go on to say they would remove the loose bits every inch they went, they would probably have to roll over the granite stone so the bits could fall out as they had no other way to draw them out.. Very unlike a drill bit we use today.. My more real wonder is how they probably used math, to help guide their carving of those narrow square shaped air shafts through the pyramid blocks. A Long way..
They most likely carved the shaft in sections on the blocks involved before they set the blocks in place, then they would have to line up perfectly, but, the egyptians were perfectionists too !
My complaint here is How could the egyptians use ICE, to freeze granite to crack it ? Where oh where they get ice from ? At night when desert gets freezing cold ? did it get freezing cold ??
Also: There is possibility they may have used molten metal to pour in the cracks they made, thus the hot liquid would crack the granite...?

Ice was only an example of a natural expansion process to illustrate how soaking wooden wedges would achieve the same result. Working a make shift drill you described can bore a hole and debris would be best removed with the block at an angle. Problem is, if you look close at tha hole in top photo, there are lines ingraved as if it is threaded. The lines are only a mil or two apart and the same depth n spacing the entire length, there is a core also matching this. Question is how such precise work be done with out diamonds, something which has never been found there. I say burden of proof is on those who think it could be done using copper!

Thank you

Seems like a no Brainer for me ...If I can figure it out in my grade 11 drop out brain surely an Egyptian
construction engineer could do it ....One method would be to use a grit of at least equal hardness ...
To bore threw Granite all they had to do was to use Granite grit ...

I believe before 12,000 BC man used a different technology than we use today. We worship the electron they did something else. The megalith's around the world seem to show that. Can we today cut and move 100 ton block's. Build a pyramid?

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