Sonic drilling in a shell is like using a cookie-cutter to lunch meat.
(Above) An abalone shell showing natural holes created by the living organism.
(Below) a slice of sandwich meat.
A star shape tube when pressed to the lunch meat will create a star hole.
Small star tubes make small star holes.
Big star tubes make big star holes.
Using a star tube combined with high vibration grinding I am able to make star holes in an abalone shell (below images).
With the power of high vibration and grinding combined, the star holes in the Abalone shell supersedes all spinning diamond tool technology today…..Period.
This is the technology used by our ancient ancestors. It works with hard granite and soft shell.
This is a small example of Nature science once used by our ancestors.