What it says
The holes are round, 1.3 to 3.5 mm across, and up to 3.5 mm deep. Wear on their edges shows the people kept chewing after the drilling, so it was done while they were alive. The same village made beads with flint drill-heads, and the dentists probably used the bow-drill of the bead-makers.
It shows the first farmers at the foot of the Bolan pass practising a skilled medicine some 9,000 years ago.









