Diamond core drill bits create holes in hard materials such as concrete, masonry, stone, tile, ceramic and glass. The correct bit depends heavily on the material, hole diameter, machine and drilling method.

Laser-Welded Diamond Core Bits
Laser-welded core bits use diamond segments joined to the steel body and are commonly used for demanding concrete, stone and masonry drilling applications.
ETOP lists laser-welded core bits for concrete, stone, brick and other hard construction materials.
Vacuum Brazed Diamond Core Bits
Vacuum brazed core bits have diamond abrasive bonded to the cutting surface and are useful for precision drilling in materials such as tile, glass, ceramic and stone, depending on the design.
ETOP also offers small-diameter vacuum brazed core bit products for fragile hard materials.
Choose by Material First
Do not select a bit only by diameter. Concrete drilling and porcelain drilling require very different tool designs. Tell the supplier the exact material and whether reinforcement may be encountered.
Connection and Machine
Core bits use different threads, shanks and connection systems. Confirm compatibility with the drilling machine before ordering.
Hole Quality and Speed
For tile and glass, edge quality and reduced chipping may be priorities. For concrete, drilling speed, segment life and stability may be more important.
ETOP Core Bit Range
ETOP Tools supplies laser-welded and vacuum brazed diamond core bit products and can discuss OEM requirements for professional buyers.
FAQ
Can one core bit drill both concrete and glass?
These materials normally require different bit designs. Use the product intended for the target material.
What should I provide when ordering?
Provide material, diameter, drilling depth, machine/connection, quantity and wet/dry requirements.
Are small diamond drill bits available?
ETOP’s catalog includes small-diameter vacuum brazed core bits for tile, glass and similar materials.
Related products: Laser-welded concrete core bit Vacuum brazed tile and glass core bits.
For specifications and OEM requirements, contact ETOP Tools.