He writes that "such a working diagram would also serve to generate the architecture of the pyramid with precision unmatched by any other means".[107]
The basalt blocks of the pyramid temple show "clear evidence" of having been cut with some kind of saw with an estimated cutting blade of 15 feet (4.6 m) in length. Romer suggests that this "super saw" may have had copper teeth and weighed up to 140 kilograms (310 lb). He theorizes that such a saw could have been attached to a wooden trestle support and possibly used in conjunction with vegetable oil, cutting sand, emery or pounded quartz to cut the blocks, which would have required the labour of at least a dozen men to operate it.[108]

Exterior
Casing
Remaining casing stones on the north side of the Great Pyramid
A casing stone in the British Museum[109]At completion, the Great Pyramid was cased entirely in white limestone. Precisely worked blocks were placed in horizontal layers and carefully fitted together with mortar, their outward faces cut at a slope and smoothed to a high degree. Together they created four uniform surfaces, angled at 51°50'40" (a Seked of 5+1/2 palms).