Have you ever held an adze in your hands?
Do you have the vaguest idea of how well it works in the hands of a craftsman?
Have you ever chisel and hammered stone?
Have you appreciated how angle, slope and force can thru infinite combination achieve virtually infinite results?
Are you patient?
How do you define 'simple tools'
Answer number 2:
very few tools have been found "IN" tombs. Representations of tools and craftman have been found in relief and models.
If it is the Adze that you are referring to, it was used Ritually in the Opening of the Mouth Ceremony.
Comparing the 2 responses:
is it simple serendipity that the same tool used to construct a King's Tomb, Opened his Mouth?
or is the symbolism blatant?