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Widia V-Groove Router Bit - OMGF
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Widia V-Groove Router Bits

$14,70$29,09 exc. VAT
Widia (carbide) CNC Router Bits for Stone, Marble, and Granite High-quality, made in Italy, 10mm straight shank writing mills for
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Electroplated carving tool for marble and ceramic - Diamar
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Electroplated carving tool for marble and ceramic – Diamar

$51,36 $41,09 exc. VAT
Electroplated carving tool for marble and ceramic These electroplated carving tools have an angle of 60 degrees or 90 degrees,

Electroplated carving tool for marble – OMGF

$49,82$54,48 exc. VAT
Electroplated carving tool for marble – OMGF These electroplated carving tools have an angle of 60 degrees or 90 degrees,
30° Polycrystalline V-Groove Router Bit for granite - OMGF
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Polycrystalline V-Groove Router Bit for granite

$135,19$157,03 exc. VAT
Polycrystalline Diamond (PCD) Router Bits Because of their harder cutting edge, the Polycrystalline Diamond tipped router bits are suitable for
30° Round (0.5-3 mm) Tip Widia V-Groove router bit for Marble
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30° Round Tip Widia Router bits

$19,21$22,18 exc. VAT
OMGF engraving tools 30° radiused (R0.5-R3) in widia

Flat-tip carving tool for Marble and Granite – OMGF

$20,56$141,95 exc. VAT
CNC Flat-tip carving tool for Marble and Granite This is also called CNC Flat router bit for marble and granite working.
30° Flat (0-3 mm) Tip Widia V-Groove router bit for Marble
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30° Flat Tip Widia Router Bits 

$16,21$20,73 exc. VAT
OMGF engraving tools 30° flat (0-3 mm) in widia

Widia round tip router bit – Marble – OMGF

$25,17$46,23 exc. VAT
Widia round tip router bit for Marble Widia router bit with a round tip (radius 5 mm / 10 mm)

Widia round edge router bit – Marble – OMGF

$29,09$63,99 exc. VAT
Widia round edge router bit for Marble Widia corner round bit for marble and limestone used to round the engraving edges

Industrial quality CNC Engraving Router bits for stone, marble, granite, and ceramic

CNC Router bits widely use by stone fabricators for engraving, signmaking, etching, lettering, writing, and finishing.

These tools are also named V-Carving bits, V-tip tools, Signmaking bits, Writing bits, and Lettering bits.
Applications: Stone and marble letters engraving, finishing in tombstones, monuments, and memorials.


Based on the type of diamond, we can divide the tips into 3 families:

  • Widia (carbide) tipped tools for marble processing. Typically used for engravings, writings, and finishes on marble and soft stone materials.
  • Electroplated bits. Mainly used for engravings on marble but ours come with a specially designed diamond for ceramic and even granite working. It’s the PinkLine model, Test it they are amazing!
  • Diamond Polycrystalline tipped bits (PCD tools) for writings and engravings on granite and ceramic.

These tools come with a 10mm cylindrical shank, with different cutting edge angles (30°, 60°, and 90° and others) and with different end tips (rounded-tip, or flat-tip).
Based on this angle, the deeper you dive into the material, the wider the groove width becomes. In other words “the relationship between the depth and width is determined by the angle of the cutting edge”.

Have a look at this drawing that shows different grooves’ width when you change the angle of the diamond tip and its cutting depth: