Rest from time to time remove the drill and spray the bit with coolant or water.
What drill bit to use for stone walls.
Other stone like limestone is extremely brittle and hard to drill.
If it is an interior wall it is made from plaster on top of wood slats.
Be sure to use a hammer drill.
You are also going to want to use a hammer drill to make your holes.
The diameter of the drill bit and the material you want to use it on will also determine the drill speed.
Before you drill a hole in the wall make sure you have the correct drill bit for your wall.
You ll need a drywall bit for a sheetrock or plasterboard wall which most household walls are made of.
So for example if you re using a 3 5 mm screw use a drill bit with a diameter of 3 mm.
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.
Step 3 drill holes.
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.
The tungsten carbide adds great durability to the drill bit.
If you re using wall anchors as well as screws the drill bit and anchors should have the same diameter.
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.
Alternatively if you have wood walls opt for a spur point bit.
For stone drilling get what is called a tap con drill bit.
Use a hammer drill with the appropriate drill bit.
Use water or a lubricant to cool the bit as you drill.