Sumitomo Heavy Industries, Ltd., offers the SLR-400T CO2 laser drilling system for $50,000,000 plus taxes.
I may be wrong on this, but I think an opal is one of those stones you set and not drill. It is a very soft stone and damages easily so it will crack if you drill it.
Making holes.
An AWL is a short pointed tool for making small holes. Mostly used in leather making. You cannot drill with it, it's smooth.
A punch is for making holes or marking a spot to centre a drill bit.
In wood work, a twist drill would be used for making small holes where an ordinary wood drill (auger) would probably split the wood.
You can drill holes in aluminum with a drill as long as you have the proper drill bit. Use a regular drill bit and keep speed moderate.
A drill makes holes in things.
To drill holes
There are many tools designed to make holes. A hand punch, an awl, a drill bit, a hole saw, and many more.
The Drill Press is used for drilling holes in various materials.
The mint does not drill holes into the coins. If a hole is drilled into a coin it dramatically reduces value. MANY COUNTRIES DRILLED HOLES IN THEIR COINS. THE COINS WERE WORN FOR JEWELRY AND THAT RENDERS THE COIN PRETTY MUCH WORTHLESS.
Drill bits are for fitting into a drilling machine to drill holes.