Porcelain & Tile Diamond Drill Bit 8mm – M14 | FIRMIX
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£13.99
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UK delivery £3.99 · Free from £40 after discounts.
Estimated delivery: 2–3 working days within the United Kingdom
OVERVIEW
Choose the right bit for your drilling job
Drill 8mm holes in porcelain, ceramic tiles and natural stone. This dry-drilling diamond bit screws onto compatible M14 angle grinders.
Vacuum-brazed diamond
Diamond cutting surface for the tile and stone applications listed here.
M14 connection
Screws onto a compatible M14 angle grinder; this is not a standard drill-chuck bit.
Dry drilling
Follow the operating speed and drilling method specified for your bit and machine.
SPECIFICATIONS
Check the dimensions before ordering
| Diameter | 8 mm |
|---|---|
| Connection | M14 |
| Construction | Vacuum-brazed diamond |
| Drilling method | Dry drilling |
Check the operating speed and markings on the supplied product against your machine instructions. Ask us if you need a dimension confirmed before ordering.
APPLICATIONS & COMPATIBILITY
Match the product to your material and machine
Materials
For dry drilling in porcelain, ceramic tiles, marble, granite and natural stone.
Machine fitting
Match the M14 thread and the permitted operating speed to your angle grinder. This is a threaded bit, not a standard drill-chuck bit. Follow the product and machine instructions, including the specified dry-drilling requirements.
More information
- Browse diamond core bit sizes and connections
- Delivery information · Returns information
- HSE: construction dust guidance ↗
External references explain general principles. The specifications on this FIRMIX product page apply to the item you are ordering.
VIDEOS
See the tools at work
Range demonstration: four bits, mounting on an angle grinder and drilling in a light-coloured tile. The size supplied is the one listed on this product page.
Watch on YouTube ↗FAQs
Questions before you buy
Will this bit fit my machine?
It has an M14 threaded connection for compatible angle grinders. Check the thread and operating speed against your machine instructions.
Can I put it in a standard drill chuck?
This is an M14 threaded bit, not a straight-shank drill bit. It is listed for compatible angle grinders.
What materials can I drill?
For dry drilling in porcelain, ceramic tiles, marble, granite and natural stone.
Is it intended for wet or dry drilling?
This product is listed for dry drilling. Follow the instructions supplied with the bit and your machine, including any cooling intervals.
How do I choose the right size?
Choose the diameter required for your fixing or installation. Check the diameter in Specifications and allow for the requirements of the item you are fitting.
Does the video show this exact size?
The video demonstrates the FIRMIX M14 range with 6, 14, 20 and 25 mm bits. Check this page’s Specifications for the size you are ordering.
How can I reduce chipping?
Support the tile securely, avoid excessive pressure and follow the starting and drilling method specified for your bit and machine. Practise on an offcut when possible.
Still unsure? Send us your machine model and the material you want to cut or drill.