Finger Bits

Finger Bits

Wide range of Diamond CNC Finger Bits for CNC machines, working centers and radial arm machines.
When working the stone with a CNC machine the finger bit is one of the most common tools because it’s used for milling away material and cutting any arc in stone.
We offer different types of finger bits to provide a fast and precise cutting with a long lasting lifespan in any material:

  • Electroplated: marble
  • Sintered: with hard bond for soft stone 
  • Sintered: with soft bond for hard granites to engineered stone
  • Sintered: with very soft bond designed for the hardest stones like quartzite

A soft material must be cut with a hard binder finger bit; a hard material requires a soft binder bit.
The standard thread size for finger bits is 1/2” gas but you find also bits with cylindrical shank or flange connection.

For further information and service don’t hesitate to contact us: info@amastone.


Choosing a Sintered Finger Bit can be confusing because the many types available. To help you we made the following chart:

EFFECTIVE FLOW CHART TO SELECTING NICOLAI DIAMANT SINTERED FINGER BITS

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    Electroplated Finger Bit For Marble Diamar
    From: 94  From: 70,50 
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    Electroplated finger bit for Marble - Diamar

    This video shows a: Electroplated finger bit for Marble with diameter 20 mm and useful height 40 mm Tool holder fork Intermac ISO 30 1/2 Gas drill point holder cone ISO 30 Intermac
    Brand: Diamar | Material: Marble | Fitting: 1/2 Gas
    Different options: verify stock
    Diameter:
    16 mm
    Useful height:
    30 mm
    Shipped within 5-10 days
    Diameter:
    16 mm
    Useful height:
    40 mm
    Shipped within 5-10 days
    Diameter:
    16 mm
    Useful height:
    50 mm
    Shipped within 5-10 days

    Square electroplated replaceable tip - Diamar
    From: 70  From: 56 
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    Square electroplated replaceable tip - Diamar

    In the video it is shown a square electroplated Diameter 20, Useful height 20 and Fitting M12.
    Brand: Diamar | Material: Marble
    Different options: verify stock
    Diameter:
    40 mm
    Useful height:
    30 mm
    Fitting:
    M14
    0 in stock (more shipped in 5-10 days)
    Diameter:
    35 mm
    Useful height:
    30 mm
    Fitting:
    M14
    0 in stock (more shipped in 5-10 days)
    Diameter:
    30 mm
    Useful height:
    25 mm
    Fitting:
    M14
    0 in stock (more shipped in 5-10 days)

    Electroplated flat head mill for marble – Cylindrical shank 10 mm - Diamar
    From: 30  From: 24 
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    Electroplated flat head mill for marble – Cylindrical shank 10 mm - Diamar

    Electroplated Diamond Bit with cylindrical shank 10 mm and flat head tip. Widely used for sculpturing and engrave artwork on marble at monument businesses. Suggested parameters to use with this diamond tip: Rpm: 6000 - 7000 Feed: 150 – 300 mm/min
    Brand: Diamar | Material: Marble | Fitting: Cylindrical 10 mm | Total height: 80 mm
    Different options: verify stock
    Diameter:
    14 mm
    Useful height:
    40 mm
    Shipped within 3-5 days
    Diameter:
    14 mm
    Useful height:
    30 mm
    Shipped within 3-5 days
    Diameter:
    12 mm
    Useful height:
    40 mm
    Shipped within 3-5 days

    Square electroplated replaceable tip
    From: 152,25  From: 121,80 
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    Nicolai - Square electroplated replaceable tip

    Brand: Nicolai Diamant | Material: Marble
    Different options: verify stock
    Diameter:
    20 mm
    Diameter:
    30 mm
    Diameter:
    25 mm

    Nicolai – Electroplated finger bit flange connection - Threaded for replaceable tips - Marble
    From: 388,50  From: 310,80 
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    Nicolai – Electroplated finger bit flange connection - Threaded for replaceable tips - Marble

    RPM: 4500 – 5200 FEED: 250 – 500 mm/min
    Brand: Nicolai Diamant | Material: Marble | Diameter: 30 mm | Motor fitting: Flange 6 Bores | Tool fitting: M14
    Different options: verify stock
    Useful height:
    40 mm
    Useful height:
    230 mm

    Nicolai – Electroplated finger bit threaded for replaceable tips – Marble
    From: 231  From: 184,80 
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    Nicolai – Electroplated finger bit threaded for replaceable tips – Marble

    Parameters: RPM: 4500 - 5200 FEED: 250 - 500 mm/min
    Brand: Nicolai Diamant | Material: Marble | Motor fitting: 1/2 Gas
    Different options: verify stock
    Diameter:
    30 mm
    Useful height:
    40 mm
    Tool fitting:
    M14
    Diameter:
    25 mm
    Useful height:
    40 mm
    Tool fitting:
    M12
    Diameter:
    25 mm
    Useful height:
    130 mm
    Tool fitting:
    M12

    Nicolai – Electroplated finger bit - Flange connection – Marble
    From: 346,50  From: 277,20 
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    Nicolai – Electroplated finger bit - Flange connection – Marble

    Rpm: 4500 – 5200 Feed: 250 – 500 mm/min
    Brand: Nicolai Diamant | Material: Marble | Fitting: Flange 6 Bores
    Different options: verify stock
    Diameter:
    30 mm
    Useful height:
    60 mm
    Diameter:
    30 mm
    Useful height:
    50 mm
    Diameter:
    30 mm
    Useful height:
    30 mm

    Nicolai - Segmented Step Cutters for Incremental Cutting - Granite
    From: 147  From: 102,90 
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    Nicolai - Segmented Step Cutters for Incremental Cutting - Granite

    Parameters: Rpm: 4800-5500 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 23 mm, 28 mm, 30 mm | Material: Granite | Fitting: 1/2 Gas
    Different options: verify stock
    Model:
    AFS91085
    Model:
    AFS91084
    Model:
    AFS91083

    Nicolai - Blue Z5 finger bit - Granite
    From: 136,50  From: 71,55 
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    Nicolai - Blue Z5 finger bit - Granite

    This Finger bit has 5 sectors made of Medium Binder (FB2), because of that it is suggested for Medium Hardness granite. This is one of the most used finger bit for cnc machine for granite cutting. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Granite | N° of sectors: 5 | Fitting: 1/2 Gas | Binder type*: Medium Binder (FB2)
    Different options: verify stock
    Useful height:
    50 mm
    Useful height:
    40 mm
    Useful height:
    30 mm

    Nicolai - White twin finger bit - Engineered Stone
    From: 141,75  From: 71,55 
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    Nicolai - White twin finger bit - Engineered Stone

    Hard Binder FB1 is suggested for Soft material. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Engineered stone | N° of sectors: 6 | Fitting: 1/2 Gas | Binder type*: Hard Binder (FB1)
    Different options: verify stock
    Useful height:
    40 mm
    Useful height:
    30 mm
    Useful height:
    50 mm

    Nicolai - Electroplated flat head mill for marble - Cylindrical shank 10 mm
    From: 73,50  From: 58,80 
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    Nicolai - Electroplated flat head mill for marble - Cylindrical shank 10 mm

    Parameters: Rpm: 7000 – 8000 Feed: 150 - 300 mm/min The models AFE00060 - AFE00065 they are holed for internal cooling.
    Brand: Nicolai Diamant | Material: Marble | Fitting: Cylindrical 10 mm | Useful height: 12 mm | Total height: 90 mm
    Different options: verify stock
    Diameter:
    10 mm
    Diameter:
    8 mm
    Diameter:
    6 mm

    Nicolai - Purple FB23 finger bit - Dekton, Lapitec and Ceramic
    From: 101,18  From: 70,83 
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    Nicolai - Purple FB23 finger bit - Dekton, Lapitec and Ceramic

    *  Very Soft Binder FB23 is suggested for Hard material. This is the finger bit comes in different diameter, useful cutting heights and number of sectors. The 6 sectors model is ideal for high speed and aggressive cutting also in hard material like granite. Parameters when using a 5 secto...
    Brand: Nicolai Diamant | Material: Ceramic, Dekton, Laminam, Lapitec, Max Fine, Neolith | Fitting: 1/2 Gas | Binder type*: Very Soft Binder (FB23)
    Different options: verify stock
    Diameter:
    23 mm
    Useful height:
    40 mm
    N° of sectors:
    6
    Diameter:
    23 mm
    Useful height:
    40 mm
    N° of sectors:
    5
    Diameter:
    20 mm
    Useful height:
    40 mm
    N° of sectors:
    5

    Nicolai - Ceramic finger bit - Ceramic
    126  88,20  exc. VAT
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    Nicolai - Ceramic finger bit - Dekton, Laminam and Ceramic

    * Very Soft Binder FB23 is suggested for Hard material. ½ Gas finger bit, with 4 sectors, diameter 16mm and useful height 20 mm. Designed to work very hard material (like ceramic or Dekton) with both CNC machines and Radial Arm machine. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/m...
    Brand: Nicolai Diamant | Diameter: 16 mm | Material: Ceramic, Dekton, Laminam, Lapitec, Max Fine, Neolith | N° of sectors: 4 | Fitting: 1/2 Gas | Useful height: 20 mm | Binder type*: Very Soft Binder (FB23)
    Verifying quantity...

    Nicolai - Jaguar Z4 FB2 finger bit - Granite
    From: 141,75  From: 99,23 
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    Nicolai - Jaguar Z4 FB2 finger bit - Granite

    * Medium Binder FB2 is suggested for Medium Hardness material. Parameters: Rpm: 4500-5200 Feed: 350-500 mm/min
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Granite | Fitting: 1/2 Gas | Binder type*: Medium Binder (FB2)
    Different options: verify stock
    Useful height:
    50 mm
    Useful height:
    40 mm

    Nicolai - Electroplated finger bit - Marble
    From: 169,05  From: 85,05 
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    Nicolai - Electroplated finger bit - Marble

    Electroplated finger bit for marble and soft stones like travertine and limestone. Long lasting premium quality and ideal for fast cutting. These finger bits are available with diameter 16 mm, 20 mm or 23 mm and with different useful cutting heights (up to 105 mm), Choose the right finger bit ...
    Brand: Nicolai Diamant | Material: Marble | Fitting: 1/2 Gas
    Different options: verify stock
    Diameter:
    23 mm
    Useful height:
    105 mm
    Diameter:
    20 mm
    Useful height:
    100 mm
    Diameter:
    20 mm
    Useful height:
    80 mm

    Nicolai - XXX Red finger bit - Granite
    From: 136,50  From: 95,55 
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    Nicolai - XXX Red finger bit - Granite

    Soft binder FB3 is suggest for Hard material. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 24 mm | Material: Granite | N° of sectors: 3 | Fitting: 1/2 Gas | Binder type*: Soft Binder (FB3)
    Different options: verify stock
    Useful height:
    55 mm
    Useful height:
    35 mm

    From: 136,50  From: 95,55 
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    Nicolai - XXX Green finger bit - Granite

    Medium binder FB2 is suggested for Medium Hardness material. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 24 mm | Material: Granite | N° of sectors: 3 | Fitting: 1/2 Gas | Binder type*: Medium Binder (FB2)
    Different options: verify stock
    Useful height:
    45 mm
    Useful height:
    35 mm

    141,75  99,23  exc. VAT
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    Nicolai - XXX Black finger bit - Engineered Stone

    This is a finger bit made of hard binder FB1 suggested for Soft material. Fast cutting and long lasting for engineered stone Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 24 mm | Material: Engineered stone | N° of sectors: 3 | Fitting: 1/2 Gas | Useful height: 35 mm | Binder type*: Hard Binder (FB1)
    Verifying quantity...

    Nicolai - Small diameter finger bit - Granite, Engineered Stone
    147  87,75 
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    Nicolai - Small diameter finger bit - Granite, Engineered Stone

    Parameters: Rpm: 5000-5500 Feed: 300-500 mm/min *How to choose the binder type? Medium binder FB2 is suggested for Medium Hardness material. Soft binder FB3 is suggest for Hard material.
    Brand: Nicolai Diamant | Diameter: 18 mm | Material: Engineered stone, Granite | N° of sectors: 4 | Fitting: 1/2 Gas | Useful height: 40 mm
    Different options: verify stock
    Binder type*:
    Soft Binder (FB3)
    Binder type*:
    Medium Binder (FB2)

    Nicolai - 8th Wonder finger bit - Granite
    157,50  81 
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    Nicolai - 8th Wonder finger bit - Granite

    thanks to its 8 segments this finger bit allows you to cut very fast any kind of materials. Choose the right binder for your application: Medium binder FB2 is suggested for Medium Hardness granite Soft binder FB3 is suggest for Hard granite. Parameters: Rpm: 4500-5200 Feed: 250...
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Granite | N° of sectors: 8 | Fitting: 1/2 Gas | Useful height: 40 mm
    Different options: verify stock
    Binder type*:
    Soft Binder (FB3)
    Binder type*:
    Medium Binder (FB2)

    Bestseller
    Nicolai - Yellow twin finger bit - Granite, Engineered Stone
    From: 141,75  From: 78,30 
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    Nicolai - Yellow twin finger bit - Granite, Engineered Stone

    The Yellow Twin finger bit is the best seller finger bit for granite cutting and well known to many marble-workers all over the world. This type of finger bit is made with Soft Binder (bond) FB3 that is ideal for cutting hard materials like granite and engineered stone. The fitting is 1/2" ...
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Engineered stone, Granite | N° of sectors: 6 | Fitting: 1/2 Gas | Binder type*: Soft Binder (FB3)
    Different options: verify stock
    Useful height:
    50 mm
    Useful height:
    40 mm
    Useful height:
    30 mm

    Nicolai - Blue twin finger bit - Granite, Engineered Stone
    From: 141,75  From: 71,55 
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    Nicolai - Blue twin finger bit - Granite, Engineered Stone

    *  Medium Binder FB2 is suggested for Medium Hardness material. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Engineered stone, Granite | N° of sectors: 6 | Fitting: 1/2 Gas | Binder type*: Medium Binder (FB2)
    Different options: verify stock
    Useful height:
    50 mm
    Useful height:
    40 mm
    Useful height:
    30 mm

    Nicolai - Yellow Z5 finger bit - Granite
    From: 136,50  From: 71,55 
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    Nicolai - Yellow Z5 finger bit - Granite

    *  Soft Binder FB3 is suggested for Hard material. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Granite | N° of sectors: 5 | Fitting: 1/2 Gas | Binder type*: Soft Binder (FB3)
    Different options: verify stock
    Useful height:
    50 mm
    Useful height:
    40 mm
    Useful height:
    30 mm

    Nicolai – Blue twin finger bit for incremental cutting – Granite, Engineered Stone
    152,25  106,58 
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    Nicolai – Blue twin finger bit for incremental cutting – Granite, Engineered Stone

    Very hard binder FB0 is suggested for very soft binder material. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Engineered stone, Granite | N° of sectors: 6 | Fitting: 1/2 Gas | Useful height: 40 mm
    Different options: verify stock
    Binder type*:
    Very hard Binder (FB0)
    Binder type*:
    Medium Binder (FB2)