Be sure to use a hammer drill.
What drill bit to use for stone walls.
For stone drilling get what is called a tap con drill bit.
You are also going to want to use a hammer drill to make your holes.
Step 3 drill holes.
Use a hammer drill with the appropriate drill bit.
Use water or a lubricant to cool the bit as you drill.
However if your wall is brick stone or concrete you ll need a masonry bit.
If it is an interior wall it is made from plaster on top of wood slats.
According to the bosch encyclopaedia the cutting edge of a stone or masonry drill bit has a tungsten carbide tip and is usually chisel shaped.
It is difficult to repair a mistake in drilling on a stone wall so make certain you have the holes in the right place before you begin.
So for example if you re using a 3 5 mm screw use a drill bit with a diameter of 3 mm.
If you don t know yourself consult with a hardware store about what kind of equipment you need to use with the stone in your wall.
You ll need a drywall bit for a sheetrock or plasterboard wall which most household walls are made of.
The diameter of the drill bit and the material you want to use it on will also determine the drill speed.
The tungsten carbide adds great durability to the drill bit.
Alternatively if you have wood walls opt for a spur point bit.
If you re using wall anchors as well as screws the drill bit and anchors should have the same diameter.
Other stone like limestone is extremely brittle and hard to drill.
The chisel shape gives the drill bit the ability to penetrate further into the stone without becoming blunt too easily.