Tube drill holes have been documented in ancient Egyptian granite monuments, including evidence at the Great Pyramid of Giza. Research indicates Egyptians used tube drilling technology on hard stones like granite, producing characteristic cylindrical holes. Some evidence of such drilling has been noted in various locations within the pyramid complex, though the specific distribution and number of holes at the precise locations mentioned varies across different sources and interpretations.
Great Pyramid Contains Tube Drill Evidence
EgyptTechnology
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Key facts
- At least three tube drill holes found in granite block at Great Pyramid entrance
- Tube drills also found in Subterranean Chamber on granite block
- Evidence in The Grotto beneath the pyramid
- Tube drills found on box in King's Chamber
- Spiral grooves visible in split drill holes
- Evidence for overcuts - mistakes from powerful cutting tools
Sources
Walking in the Shadow of William F. Petrie – Giza Powergizapower.com
These tubular drills vary from 1/4 inch to 5 inches in diameter, and from 1/30 to 1/5 thick. The smallest hole yet found in granite is 2 inches diameter, all ...
Egyptian Core Drill Holes In Stone: Evidence Of Machining ...hiddenincatours.com
All that remains of them are artifacts such as the Sphinx, Great Pyramids of Giza and of course these drill hole examples. 92 abu 4. The above photo shows ...
Expedition Magazine | Ancient Egyptian Stone-Drillingpenn.museum
Because of the size of the drill holes in the lid, we had to resort to a modification. In order to take an impression of the hole, a large dowel was used ...
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