Core Drill Bits

Core Drill Bits for CNC Machines

Diamond Core Drill Bits to make through holes or blind holes with CNC Machines or Manual Contouring Machines.
These are diamond drill bits are specifically designed to work marble, granite, ceramic, quartz and engineered stones.
All available drill bits in this section must be used on wet applications.
Main types to choose from:
  1. sintered drill bits for hard stone, granite and quartz
  2. electroplated  drill bits for marble and soft stone
  3. segmented ring drill bits
  4. continuous ring drill bits for a smooth holing
These high-quality core drill bits are manufactured in Italy and are made by Nicolai Diamant with the highest quality diamonds in the industry. Because of that, they are all last longer, don’t blow out the bottom of the stone and cut faster.
These tools are tested and approved for machines like Breton, CMC-Brembana, Omag, Poseidon and many other machines.
For special tools, in size or shape, don’t hesitate to contact us, we can supply you customized tools upon request
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    Continuous rim core drill bits - Lapitec, Dekton, Neolith - Diatex
    From: $44,09 From: $35,27
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    Continuous rim core drill bits - Lapitec, Dekton, Neolith - Diatex

    This Continuous rim core bit is suggested when you need a highly smooth and accurate holing in ceramic big slabs. Thanks to the continuous rim this tool ensures a clean cut even when exiting the material at the end of the holing. It has a little bit weaker structure because it's thinner a...
    Brand: Diatex | Useful height: 30 mm | Total height: 75 mm | Rim thickness: 1,5 mm | Fitting: 1/2 Gas | Application: Ceramic, Dekton, Gres, Laminam, Lapitec, Neolith, Porcelain
    Variable product - view product to verify stock
    Nicolai - Continuous rim core bits - Ceramic
    From: $69,44 From: $55,56
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    Continuous rim core bits - Ceramic, Gres - Nicolai

    A Continuous rim core bit is suggested when you need a highly smooth and accurate holing. Thanks to the continuous rim this tool gives you a slower cutting, if compared with a segmented ring core bit, but it ensures a clean cut even when exiting the material at the end of the holing. It has a li...
    Brand: Nicolai Diamant | Useful height: 55 mm | Fitting: 1/2 Gas | Use with: CNC | Application: Ceramic, Gres, Porcelain
    Variable product - view product to verify stock
    Electroplated anchor bits 3/16" and 1/4" Type Fischer
    From: $77,16 From: $57,87
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    Electroplated anchor bits type Fischer - Diamar

    Electroplated anchor bits to drill anchor channels into the back of the stone in order to have a perfect hole for securing undermound sinks or for fixing slabs on the facades of buildings. This anchor bit is used on many materials like natural stone, marble or granite. The cylindrical shank 10m...
    Brand: Diamar | Fitting: Cylindrical 10 mm | Type: Not holed | Grit: 30 / 35 | Use with: CNC | Application: Granite, Marble, Natural Stone
    Variable product - view product to verify stock
    Blind hole drill bit for Granite, Engineered stone, Ceramic - Nicolai
    From: $20,83 From: $16,67
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    Blind hole drill bit for Granite, Engineered stone, Ceramic - Nicolai

    This sintered blind hole drill bit for CNC machine is used when you  need a small or big hole to be drilled in granite, engineered or ceramic stone. These blind hole drill bits have a cylindrical shank of 10 mm. This is a video of a sintered In this video is shown a sintered blind h...
    Brand: Nicolai Diamant | Fitting: Cylindrical 10 mm | Use with: CNC
    Variable product - view product to verify stock
    Nicolai - Electroplated core bits - Marble
    From: $150,46 From: $120,37
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    Electroplated core bits - Marble - Nicolai

    In this video is shown a electroplated core bits with diameter 35 mm and total length 100 mm.
    Brand: Nicolai Diamant | Useful height: 100 mm | Fitting: 1/2 Gas | Use with: CNC | Application: Marble
    Variable product - view product to verify stock
    Nicolai - Segment core bits - Granite, Engineered stone
    From: $91,44 From: $73,15
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    Segment core bits - Granite, Engineered stone - Nicolai

    These CNC bits are available in a wide selection of diameters, from 25mm up to 120 mm. The useful cutting height is 70mm. Made to last! Incredible performance working hard material such as granite and lava stone Segment core bits diameters table:
    Brand: Nicolai Diamant | Useful height: 70 mm | Fitting: 1/2 Gas | Use with: CNC | Application: Engineered stone, Granite
    Variable product - view product to verify stock
    Nicolai - Continuous rim core bits - Granite, Engineered Stone
    From: $69,44 From: $55,56
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    Continuous rim core bits - Granite, Engineered Stone - Nicolai

    A Continuous rim core bit is suggested when you need a highly smooth and accurate holing. Thanks to the continuous rim this tool gives you a slower cutting, if compared with a segmented ring core bit, but it ensures a clean cut even when exiting the material at the end of the holing. It has a li...
    Brand: Nicolai Diamant | Useful height: 50 mm | Fitting: 1/2 Gas | Use with: CNC | Application: Dekton, Engineered stone, Granite, Laminam, Lapitec, Neolith, Quartz
    Variable product - view product to verify stock