Diamonds are widely used in the tool industry to tip drill bits and to edge blades that cut tile, stone and rock.
A pillar drill can cut through almost any material if the speed is correct and the appropriate drill bit is used.
The colour is irrelevant , that just depends on the manufacturer. To cut through concrete you need a 'carbide tipped' drill bit. This tip is a little wider than the drill bit and is quite obvious.
Yes
Yes, there is. You use a tungsten or cobalt coated drill bit for this.
One use is to drill through tile without cracking it.
Yes, with the correct drill using the correct bit, at the correct speed and drilling pressure, (Add a little patience, skill and good luck.)
You need a diamond tipped drill bit to drill glass or tile.
You will need to pre drill the hole. Some diamond tipped drill bits will allow you to do so. Still there is a high risk of cracking the tile.
You drill plexiglass with a standard HSS drill at a low speed and with a piece of wood right where the drill point will exit the work.
They are used in bits that cut stone or tile.
Depending on the type of drill BIT, it may drill through almost anything.
With a Diamond drill bit and water. Keep enough water around the bit to keep it relatively cool. If drilling through a counter make a dam around the area where the hole will be with plumbers putty. Fill with water and slowly drill.
Diamonds are widely used in the tool industry to tip drill bits and to edge blades that cut tile, stone and rock.
Drilling ceramic tile can be accomplished with a carbide tipped drill bit such as one for masonry or concrete but a better choice is a bit designed to drill glass which is much harder Most home improvement stores carry such bits and they are only a bit more than regular bit sets. A glass bit looks like a spade on the end of a shank while the masonry bit looks like a traditional twist drill.
With a high-speed drill or rotary tool - carbide or diamond bit.
What I do is drill a 1/4" hole in the tile (use the bar as a template, mark your holes with a pencil) with a masonry bit. This can be difficult depending on the type of tile you have. You may have to buy a diamond core bit if a masonry bit does not drill it. Then use a smaller drill bit to drill into the wall at each hole. This bit needs to be small enough to be a pilot hole for your screws as if you were drilling a pilot hole into wood. Keep track of the holes that hit wood with this bit. You will not need to use mollys in these holes. The other holes drill through the Sheetrock with a 1/4" bit and use a hammer to tap 1/4" plastic mollys into the tile. You can now use the screws that came with the bars to secure the bars to the wall. Good luck!