Show litt heit leot drill drills the builder builders of the great rent pyramid pyramids did not know how to harness electricity but they evidently did have rotary dia die mond drills and knew how to uie tl em the mining industry duttry In claim claims that this has been proven beyond a doubt it a lay a Y during a residence redde oce of 0 tw two yean years tn lit a tomb at gizea A nt I 1 linden linders octilo coll collected acted evidence showing that the tools used in working 4 00 yean years ago were made with the jeweled cutting edges as aili Is the modern custom lie ile hu lies given his lenons tenons for cowing coming to these conclusions and 1 rove roves in a very that tho he pyramid builders used solid and tubular drilli drills straight and circular awe saws and many other supposed modern tool toola la Is erecting tl ti at greatest Erea of 0 all buildings lie ile alio also bowed showed that their lathe tool tools were let set wita with jewel jewels and thea the did work with them that would pazzla the mod ern em artisan in one place he found aher here tl it a line lines of cutting on a granite core made by a tubular drill from roca a uniform depth throughout shout showing that th the bittini point wai was not worn as the work advanced the regular taper of the core would ulso also go to prove that the drill was wa set with jewell jewels on the in alao and on outside alike tl 11 ere by ael ll Il tating its it r moval boval in 11 some me n 11 ID of f granite he h found tl it at the drill had tied sun uok it I 1 IU of all n inch at ech revolution tile the pressure sure wilt necessary to accous 11 II Is to haven been at leant least two to Is i 11 e capacity ot of tl tie stool tool and lot the nor knien are illustrated ly by tie c clean lean cut they made through the soft io and bard hard material alike there being abeln no difference in tn tte U a width of the groove 1 wl I eu eta it passee passe through loft soft And sand a and granite I 1 ard w irm athing ot hing li 14 known ut of the material of which their tool tools were mide nor I 1 ow the lewel jewels were ere let set th the diamond damond waa was very scarce at that time therefore he the only logical li 13 that tl if ey used corundum |