Finger Bits

CNC Finger Bits


Diamond CNC Finger bits for the stone fabrication

A 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: for marble
  • Sintered: with a hard bond for soft stone 
  • Sintered: with a 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 a cylindrical shank or flange connection.

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


Choosing a Sintered Finger Bit can be confusing because of 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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    Yellow metal twin finger bit Ø20x 40 mm - Granite, Engineered Stone - Nicolai
    $95,84 exc. VAT
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    Yellow metal twin finger bit Ø20x 40 mm - Granite, Engineered Stone - Nicolai

    Soft Binder FB3X is suggested for very hard material. Parameters: Rpm: 4500-5200 Feed: 250-500 mm/min
    Brand: Nicolai Diamant | Diameter: 20 mm | Material: Engineered stone, Granite | N° of sectors: 6 | Fitting: 1/2 Gas | Useful height: 40 mm | Binder type*: Soft Binder (FB3X) | Use with: CNC
    Verifying quantity...

    Electroplated Finger Bit For Marble Diamar
    From: $112,22 From: $84,17
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    Electroplated finger bit for Marble - Diamar

    When you need to cut and profile marble or soft-stone with your CNC machine you have to use an electroplated finger bit. This electroplated tool is available in 3 diameters 16, 20 and 25 mm. The Useful height is up to 120 mm. The fitting for the spindle is 1/2' gas This is a made in Italy ...
    Brand: Diamar | Material: Marble | Fitting: 1/2 Gas | Grit: Standard - D711 25/30 | Use with: CNC
    Different options: verify stock
    Diameter:
    16 mm
    Useful height:
    100 mm
    0 in stock (more shipped in 5-10 days)
    Diameter:
    16 mm
    Useful height:
    30 mm
    0 in stock (more shipped in 5-10 days)
    Diameter:
    16 mm
    Useful height:
    40 mm
    0 in stock (more shipped in 5-10 days)

    Round (ball nose) electroplated finger bit tip for marble - Diamar
    From: $78,55 From: $62,84
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    Round (ball nose) electroplated finger bit tip for marble - Diamar

    Ball nose finger bit tip ideal for carving on marble with CNC machines. For CNC machines, you can use this 1/2 Gas > M10, M12, M14 adaptor. If you are looking for the same model of this finger bit tip but without ball nose head, you can check the electroplated finger bit tip for marble ...
    Brand: Diamar | Material: Marble | Use with: CNC
    Different options: verify stock
    Diameter:
    30 mm
    Useful height:
    25 mm
    Fitting:
    M12
    0 in stock (more shipped in 5-10 days)
    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)

    Electroplated finger bit tip for marble - Diamar
    From: $78,55 From: $62,84
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    Electroplated finger bit tip for marble - Diamar

    Squared finger bit tip ideal for incremental cutting and carving on marble with CNC machines. For CNC machines, you can use this 1/2 Gas > M10, M12, M14 adaptor. If you are looking for a rounded model of this finger bit tip, you can check the "ball nose" finger bit tip for marble This f...
    Brand: Diamar | Material: Marble | Use with: CNC
    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: $33,67 From: $26,93
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    Electroplated flat router bit for marble - Diamar

    Electroplated diamond bit available with 6 or 10 mm cylindrical shank and flathead tip. Widely used for sculpturing and carve artwork on marble at monument businesses with CNC machines. Rpm: 6000 - 7000 Feed: 150 – 300 mm/min  
    Brand: Diamar | Material: Marble, Soft stone, Stone | Total height: 80 mm | Use with: CNC
    Different options: verify stock
    Diameter:
    4 mm
    Useful height:
    10 mm
    Fitting:
    Cylindrical 6 mm
    0 in stock (more shipped in 5-10 days)
    Diameter:
    3 mm
    Useful height:
    10 mm
    Fitting:
    Cylindrical 6 mm
    0 in stock (more shipped in 5-10 days)
    Diameter:
    3 mm
    Useful height:
    20 mm
    Fitting:
    Cylindrical 6 mm
    4 in stock (more shipped in 5-10 days)

    Electroplated finger bit tip for marble - Nicolai
    From: $170,86 From: $136,68
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    Electroplated finger bit tip for marble - Nicolai

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

    Round (ball nose) electroplated finger bit tip for marble - Nicolai
    From: $194,42 From: $155,54
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    Round (ball nose) electroplated finger bit tip for marble - Nicolai

    Brand: Nicolai Diamant | Material: Marble | Use with: CNC
    Different options: verify stock
    Diameter:
    30 mm
    Diameter:
    20 mm

    Nicolai – Electroplated finger bit flange connection - Threaded for replaceable tips - Marble
    From: $435,98 From: $348,78
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    Electroplated finger bit flange connection - Threaded for replaceable tips - Marble - Nicolai

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

    Nicolai – Electroplated finger bit threaded for replaceable tips – Marble
    From: $259,23 From: $207,38
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    Electroplated finger bit (threaded for replaceable tips) – Marble - Nicolai

    To cutting marble, and soft stones, with your CNC machine you need an Electroplated Diamond finger bit like this. It's a tool available in 3 different diameters. For each diameter model you can have different useful heights ( it's the height of the electroplated part). This finger bit is als...
    Brand: Nicolai Diamant | Material: Marble | Motor fitting: 1/2 Gas | Use with: CNC
    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: $388,85 From: $311,08
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    Electroplated finger bit - Flange connection – Marble - Nicolai

    Rpm: 4500 – 5200 Feed: 250 – 500 mm/min
    Brand: Nicolai Diamant | Material: Marble | Fitting: Flange 6 Bores | Use with: CNC
    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: $164,96 From: $115,48
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    Segmented Step Cutters for Incremental Cutting - Granite - Nicolai

    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 | Use with: CNC
    Different options: verify stock
    Model:
    AFS91085
    Model:
    AFS91084
    Model:
    AFS91083

    Electroplated finger bit tip for incremental cutting Ø20 mm - Marble - Nicolai
    $122,55 $98,04
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    Electroplated finger bit tip for incremental cutting Ø20 mm - Marble - Nicolai

    Rpm: 4800 – 5500 Feed: 400 – 1000 mm/min Maximum cutting depth 5 mm
    Brand: Nicolai Diamant | Material: Marble | Diameter: 20 mm | Useful height: 10 mm | Use with: CNC
    Different options: verify stock
    Fitting:
    M12
    Fitting:
    M10

    Nicolai - Blue Z5 finger bit - Granite
    From: $134,67 From: $94,27
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    Blue Z5 finger bit - Granite - Nicolai

    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) | Use with: CNC
    Different options: verify stock
    Useful height:
    50 mm
    Useful height:
    40 mm
    Useful height:
    30 mm

    Nicolai - White twin finger bit - Engineered Stone
    From: $140,28 From: $98,19
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    White twin finger bit - Engineered Stone - Nicolai

    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) | Use with: CNC
    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: $27,10 From: $21,68
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    Electroplated flat head router bit for marble - Nicolai

    Electroplated flat head router bit for marble and soft stone carving with CNC machines. The AFE00060 and AFE00065 models are holed for internal water flow
    Brand: Nicolai Diamant | Material: Marble | Useful height: 12 mm | Total height: 90 mm | Use with: CNC
    Different options: verify stock
    Diameter:
    2 mm
    Fitting:
    Cylindrical 6 mm
    Diameter:
    3 mm
    Fitting:
    Cylindrical 6 mm
    Diameter:
    4 mm
    Fitting:
    Cylindrical 6 mm

    Nicolai - Purple FB23 finger bit - Dekton, Lapitec and Ceramic
    From: $113,55 From: $79,49
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    Purple FB23 finger bit dia. 20/23 mm - Dekton, Lapitec and Ceramic - Nicolai

    *  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) | Use with: CNC
    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
    $141,40 $98,98 exc. VAT
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    Ceramic finger bit dia 16 mm - Dekton, Laminam and Ceramic - Nicolai

    Finger bit for ceramic Made in Italy, made by Nicolai Diamant. * 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...
    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) | Use with: CNC
    Verifying quantity...

    Nicolai - Jaguar Z4 FB2 finger bit - Granite
    From: $140,28 From: $98,19
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    Jaguar Z4 FB2 finger bit - Granite - Nicolai

    * 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) | Use with: CNC
    Different options: verify stock
    Useful height:
    50 mm
    Useful height:
    40 mm

    Nicolai - Electroplated finger bit - Marble
    From: $189,65 From: $132,76
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    Electroplated finger bit - Marble - Nicolai

    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 | Use with: CNC
    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: $152,62 From: $106,83
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    XXX Red finger bit - Granite - Nicolai

    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) | Use with: CNC
    Different options: verify stock
    Useful height:
    55 mm
    Useful height:
    35 mm

    From: $152,62 From: $106,83
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    XXX Green finger bit - Granite - Nicolai

    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) | Use with: CNC
    Different options: verify stock
    Useful height:
    45 mm
    Useful height:
    35 mm

    $152,62 $106,83 exc. VAT
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    XXX Black finger bit - Engineered Stone - Nicolai

    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) | Use with: CNC
    Verifying quantity...

    Nicolai - Small diameter finger bit - Granite, Engineered Stone
    $140,28 $98,19
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    Finger bit diameter 18mm for Granite, Engineered Stone - Nicolai

    18mm-diameter finger bits made in Italy by Nicolai Diamant When you need a finger bit with a smaller diameter than the popular 23mm you can use these special finger bits with a diameter of 18mm, available in 2 different binders. Parameters for the use of the finger bits in your CNC machine:...
    Brand: Nicolai Diamant | Diameter: 18 mm | Material: Engineered stone, Granite | N° of sectors: 4 | Fitting: 1/2 Gas | Useful height: 40 mm | Use with: CNC
    Different options: verify stock
    Binder type*:
    Soft Binder (FB3)
    Binder type*:
    Medium Binder (FB2)

    Nicolai - 8th Wonder finger bit - Granite
    $151,50 $106,05
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    8th Wonder finger bit - Granite - Nicolai

    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 | Use with: CNC
    Different options: verify stock
    Binder type*:
    Soft Binder (FB3)
    Binder type*:
    Medium Binder (FB2)

    Bestseller
    Nicolai - Yellow twin finger bit - Granite, Engineered Stone
    From: $140,28 From: $98,19
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    Yellow twin finger bit - Granite, Engineered Stone - Nicolai

    The Yellow Twin finger bit is the best seller finger bit for granite cutting and well known to many stone-fabricators all over the world. This type of finger bit is made of Soft Binder (bond) FB3 that is ideal for cutting hard materials like granite and engineered stone. Made by Nicolai Diamant...
    Brand: Nicolai Diamant | Diameter: 23 mm | Material: Engineered stone, Granite | N° of sectors: 6 | Fitting: 1/2 Gas | Binder type*: Soft Binder (FB3) | Use with: CNC
    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: $140,28 From: $98,19
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    Blue twin finger bit - Granite, Engineered Stone - Nicolai

    *  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) | Use with: CNC
    Different options: verify stock
    Useful height:
    50 mm
    Useful height:
    40 mm
    Useful height:
    30 mm

    Nicolai - Yellow Z5 finger bit - Granite
    From: $134,67 From: $94,27
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    Yellow Z5 finger bit - Granite - Nicolai

    *  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) | Use with: CNC
    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
    $170,86 $119,60
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    Nicolai – Blue twin finger bit for incremental cutting – Granite, Engineered Stone - Nicolai

    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 | Use with: CNC
    Different options: verify stock
    Binder type*:
    Very hard Binder (FB0)
    Binder type*:
    Medium Binder (FB2)