
6×45°x0.2 Diamond Flat Bottom Engraving Bit Guide
A diamond flat bottom engraving bit with a 6 mm shank, 45° profile and 0.2 mm flat tip is designed for controlled lettering, logos and shallow decorative grooves in ceramic, tile, marble and compatible stone. The small flat strengthens the tip and creates a defined groove bottom when the machine, workholding and cutting parameters are stable.
Applications and Material Checks
- CNC lettering and logo engraving in ceramic or tile
- Decorative lines and shallow relief work in marble or stone
- Consistent V-grooves requiring a narrow flat bottom
- Repeat-production parts with controlled depth and edge quality
Confirm that the workpiece material is suitable for the diamond cutting section before machining. Natural stone, engineered stone and ceramics differ in abrasiveness and fracture behavior, so test on an offcut and inspect for chipping, edge breakout and heat before running a complete job.
Understanding 6×45°x0.2
The specification identifies the 6 mm shank, 45° included cutting profile and 0.2 mm flat tip. Verify the product drawing for overall length, usable cutting depth, cutting direction and diamond section. Program the toolpath from the measured geometry rather than relying only on the product name.
CNC Setup, Cooling and Dust Control
Clean the collet and shank, confirm low spindle runout and clamp the workpiece on a rigid, level support. Begin with a shallow test pass and conservative feed. Use the coolant or dust-control method approved for the material, machine and workshop; never allow slurry or abrasive dust to obscure the cutting zone or contaminate machine components.
Maintain a steady toolpath and avoid impact, sudden plunges or excessive depth. If the groove shows chipping or inconsistent width, check tool runout, workpiece vibration, Z-axis zero, cutting depth, feed, coolant delivery and diamond-edge condition before changing spindle speed.
JEEFOO Tools from Guangzhou, China
JEEFOO supplies diamond and carbide CNC tools from Guangzhou, China for distributors, stone-processing shops and manufacturers. Share the material, groove angle, depth, machine type, cooling method and production quantity when requesting a diamond flat bottom engraving bit. Explore related products on the JEEFOO cutting tools website.
For background on automated toolpaths, see the reference on numerical control. Store the verified tool number, measured length, feed, speed, depth and cooling method with the CNC program for repeatable production.
Production Inspection
Inspect the first finished part under consistent lighting. Check groove width, depth, edge chipping and surface cleanliness. Stop immediately if cutting noise, load or finish changes unexpectedly, and replace a damaged tool instead of compensating with unsafe parameters.
Frequently Asked Questions
What does the 0.2 mm flat tip do?
It creates a narrow defined groove bottom and gives the point more support than a needle-sharp V tip, while still allowing detailed engraving.
Can one setting be used for every stone?
No. Material hardness, brittleness, cooling and machine rigidity vary. Use a shallow test cut and approve the finish before production.
How should the diamond edge be handled?
Protect it from impact, keep it clean and inspect the diamond flat bottom engraving bit before each batch.
Product Description
This 6 mm shank diamond flat bottom engraving bit combines a 45° included angle with a 0.2 mm flat tip for controlled fine-line carving. The flat bottom strengthens the cutting point compared with a needle-sharp tip and produces a defined groove bottom for lettering, decorative lines and shallow relief work.
The diamond cutting section is intended for abrasive materials such as ceramic, tile, marble and tombstone stone. A 45° profile balances detail and groove width, making it suitable for general engraving where clean edges and consistent depth are required. Use rigid clamping, steady coolant or dust control, and conservative feeds to protect the diamond edge.
Recommended Applications
- Ceramic, tile, marble and compatible stone engraving
- CNC lettering, logos and decorative groove carving
- Precision machining with controlled depth and stable workholding



