How to Drill With a Masonry Bit

A masonry bit cuts through concrete and mortar.
A masonry bit cuts through concrete and mortar. (Image: Masonary Drill Bit image by Picapix from

Masonry bits are specifically designed for drilling into masonry, specifically concrete blocks, bricks, mortar or poured concrete. A masonry bit is really more like a cold chisel than a standard twist drill bit. The two tips on the end of the bit carve out small chunks of mortar, and the flutes carry the mortar out of the hole.

Things You'll Need

  • Power drill or hammer drill
  • Masonry bit

Video of the Day

Insert the blunt end of the drill bit into your power drill or hammer drill and tighten the chuck.

Position the point of the drill bit at the center of the spot where the hole is to be drilled. Adjust the alignment of the drill so that the bit shaft is parallel to the desired path.

Slowly squeeze the drill's trigger, and begin drilling the hole slowly. Too much speed can cause the bit to wander.

As the hole begins to form, increase the drill's speed to quicken the drilling process.

Pull the drill bit out of the hole about once every inch of drilling to clear away the loose mortar from the hole.

Continue drilling until the desired depth is reached.

Tips & Warnings

  • When drilling with a masonry bit, keep the speed slow to avoid overheating the tip of the bit.
  • A hammer drill will drill faster than a regular power drill, but the hammering action is more abusive to the bit.
  • When working with power tools, always wear appropriate safety equipment, including safety goggles.


Promoted By Zergnet
Is DIY in your DNA? Become part of our maker community.