Dry Core Drill Bit - 3"X4" Short Tube (10/box)

This bit was specially designed for masonry, and concrete block.

Tested over a period of 2 years to give you:

• Up to 300 holes in 1500psi block.
• Up to 125 holes in 200psi block.

•  Pointed V segments for easy start.
• For use on grinders or core drill rigs without percussion.
• Laser welded diamond segments to perform under extreme heat and cutting pressure.
• This core drill bit is ideal for dry cutting and provides perfect drilling action.
• It can fit on an angle grinder tightly and rightly.