YINGBA · CARBIDE CNC CUTTING TOOLS
Stone Engraving Tools
Vacuum-brazed diamond tooling for granite, marble and engineered stone.
Brazed diamond · Flat end, V-groove & tapered · 6 to 16 mm shanks
Quick answer: stone engraving tools use vacuum-brazed diamond rather than a solid carbide edge, because granite, quartz and engineered stone wear a carbide edge away within a short run. The diamond grit is brazed directly onto the steel body, giving an abrasive-resistant cutting edge for lettering, carving, edge profiling and V-grooves in natural and engineered stone. Suitability for a specific material is confirmed per specification.
Materials and machines
- Materials: Natural marble, granite, slate, basalt, limestone, travertine, quartz stone, engineered marble, microcrystalline stone, terrazzo, artificial jade, ceramic tile, polished tile
- Machines: Stone CNC engraving machines, slab CNC machining centres, vertical CNC machining centres, compact advertising CNC engraving machines, dual-purpose advertising and woodworking CNC routers
Feed rate, spindle speed and depth of cut must be matched to the tool diameter, material, machine rigidity and workholding. These are application-specific and are confirmed for each order.
Complete size list
Three geometries cover the common stone operations. Tell us the stone and the operation and we will confirm the geometry and the cutting parameters.
Flat end brazed stone cutter
For flat-bottomed grooves, edge work and general removal in stone.
| Shank (mm) | Cutting Ø (mm) | Cutting length (mm) | Overall length (mm) |
|---|---|---|---|
| 6 | 6 | 12 – 20 | 60 – 90 |
| 8 | 8 | 12 – 20 | 60 – 90 |
| 10 | 10 | 20 – 30 | 60 – 90 |
| 12 | 12 | 20 – 50 | 90 – 110 |
Brazed diamond V-groove bit
For V-carved lettering and decorative grooves in stone; the included angle sets the stroke width.
| Shank (mm) | Cutting width (mm) | Included angle (°) |
|---|---|---|
| 6 | 10 | 60 |
| 8 | 16 – 20 | 60 – 120 |
Vacuum brazed tapered diamond bit
For fine detail and carving where a small tip with a rigid body is needed.
| Shank (mm) | Tip Ø (mm) | Abrasive length (mm) |
|---|---|---|
| 6 | 1.5 – 3 | 6 – 20 |
| 8 | 3 – 6 | 20 – 30 |
| 10 | 3 – 8 | 30 – 80 |
| 12 | 3 – 8 | 30 – 120 |
| 16 | 6 – 8 | 100 – 120 |
Frequently asked questions
What are stone engraving tools used for?
Lettering, carving, edge profiling and V-grooves in natural and engineered stone: marble, granite, slate, limestone, travertine, quartz stone, engineered marble, microcrystalline stone, terrazzo and ceramic tile.
Why diamond instead of carbide for stone?
Stone is abrasive and wears a carbide edge away quickly, which loses depth control and burns the surface. Brazed diamond holds an edge far longer on abrasive material.
Do I need coolant for stone work?
In most cases yes — water or mist cooling. It controls the heat that damages the edge and the finish, and it controls the dust. Confirm the setup for your machine and material.
Which geometry should I choose?
Flat end for flat-bottomed grooves and edge work, V-groove for lettering and decorative grooves, and tapered for fine detail and carving where a small tip is needed.
Can I order custom tip sizes and angles?
Yes. Cutting diameter, tip diameter, abrasive length and V-groove angle can be produced to your drawing.
Related guides and tools
Need a matched tool recommendation?
Tell us the material, the operation and your machine. YINGBA will review the requirement and prepare a B2B quotation.