soft-spoken adjective. âº usually âspeaking in a âquiet âvoice: a soft-spoken, âunderstated âstyle. (Definition of soft-spoken from the Cambridge Academic Content Dictionary Â© Cambridge University Press).
The laser drilling process involves the use of an infrared laser (of surgical grade at a wavelength about 1064 nm) to bore very fine holes (less than 0.2 millimeters or 0.005 inches in diameter) into a diamond to create a route of access to a black carbon crystal inclusion.
You can drill by hand, but the drill press saves you so much stress because it keeps the drill perfectly in place as you're boring through the glass or stone. The last component that you would need to get is a diamond drill bit. I use 1.2 to 1.5 mm bits, and I buy at least three at a time because they are breakable.