An 12x10x4x2x6x40L brazed diamond forming bit is designed for controlled CNC routing, trimming, slotting and detail machining in stone and compatible engineered stone. The diamond cutting surface supports abrasive mineral work where ordinary woodworking cutters are unsuitable. Correct spindle speed, feed, cooling strategy and shallow step-downs are essential because stone dust, heat and vibration can reduce finish quality and tool life.
Applications and Material Planning
Typical uses include stone lettering, decorative grooves, edge trimming, relief details, sink or fixture openings and small-profile contour work. Confirm that the 8 mm shank, 10 mm cutting diameter and 50 mm working length match the collet, tool library and programmed depth. Material density varies, so test on a sample before machining a finished component.
- Stone signs, plaques and architectural decoration.
- Grooves, pockets and contour trimming in compatible stone.
- CNC lettering and relief work with controlled depth.
- Prototype, workshop and repeat-production stone machining.
CNC Setup, Cooling and Toolpath Control
Clean the collet and shank, insert the tool to a safe gripping depth and verify runout before starting. Set an accurate work zero, preview the complete toolpath and confirm fixture clearance. Use conservative passes and a steady feed rather than forcing a deep cut. General principles of programmed machine motion are explained in this numerical control reference.
Use the cooling or dust-control method approved for the machine and material. Wet machining may reduce heat and airborne dust when the CNC system is designed for it; dry machining requires effective extraction and suitable personal protection. Never introduce water to electrical equipment or a machine not rated for wet operation. Stop if vibration, unusual sound, burning or edge damage appears.
Surface Quality and Inspection
Inspect the first groove for width, depth, edge chipping and visible tool marks. If the finish is rough, check runout, workholding, feed stability, cooling and tool wear before changing several parameters at once. A secure stone blank and a rigid machine reduce chatter. Remove slurry or dust according to workshop rules and inspect the diamond surface after each production run.
JEEFOO Supply from Guangzhou, China
JEEFOO supplies CNC cutting tools from Guangzhou, China for stone workshops, sign makers, distributors and industrial buyers. When requesting an 12x10x4x2x6x40L brazed diamond forming bit, provide the shank size, cutting diameter, working length, stone type, machine model, cooling method and intended operation. These details help confirm a standard or customized option. Visit the JEEFOO CNC cutting tool homepage for related stone and engraving cutter categories.
Inspection and Safe Operation
- Inspect the shank and diamond cutting surface before installation.
- Use a clean, correctly sized collet and tighten it to machine specifications.
- Secure the workpiece and confirm clamps are outside the toolpath.
- Use guarding, extraction and eye, hearing and respiratory protection.
- Replace a cracked, bent, chipped or excessively worn tool immediately.
Diamond Stone Cutting Bit FAQ
What can this diamond bit machine?
It is intended for stone and compatible abrasive mineral materials after a controlled test confirms the machine, cooling method and toolpath are suitable. Do not assume identical settings for every stone composition.
How can edge chipping be reduced?
Use rigid workholding, low runout, conservative step-downs, stable feed and appropriate cooling or dust control. A finishing pass can improve the final edge when the material and toolpath allow it.
When should the bit be replaced?
Replace it if the shank is damaged, the diamond surface is cracked or badly worn, or verified settings no longer produce an acceptable finish. Continuing with a damaged tool risks poor quality and machine damage.
– wp:heading –>Product Description
This 12x10x4x2x6x40L brazed diamond forming bit uses a compound profile for controlled stone edge shaping and detailed contour work. Its vacuum-brazed diamond cutting surface offers aggressive grinding action on hard mineral materials.
Use it for repeatable CNC forming on granite, marble and engineered stone after confirming the compound dimensions against the required edge profile.
Recommended Applications
- Compound stone profiles
- Edge forming and trimming
- Granite and marble contouring
