You need a diamond tipped bit to drill almost any rock.
drillability is the relative speed at a which rock may be penetrated by a drill bit
Miners drill into rock using drilling machines equipped with strong drill bits. These drill bits rotate and exert pressure to create holes in the rock. Water or other substances may be used to cool the drill bit and help clear the drilled materials.
To drill into granite, use a carbide-tipped masonry drill bit and a hammer drill for best results. Start by marking the drilling spot, then apply firm pressure and keep the drill bit in a steady, perpendicular position. Use water or a cooling lubricant to prevent the drill bit from overheating while drilling.
It's on the left side of the rock and a bit down
Drilling holes into rock can be challenging depending on the type of rock and the tools you have. You may need specialized equipment such as a rock drill or a hammer drill with masonry bits. It's important to wear appropriate safety gear and take necessary precautions to prevent injury.
metal drill bit has a finer point
A titanium or cobalt drill bit.
The precise shape and angles of a drill bit.
A tungsten coated drill bit.
You need a diamond tipped drill bit to drill glass or tile.
That is a drill bit designed to remove partial drill bits that have broken in a hole