Diamond Core Drill Bit for Porcelain 25mm M14 K00507 Keltin
Key information
Availability:In stock (ready to ship)
Shipping time:immediately
Shipping cost:From 3.29 Euro
catalog number:K00507
Availability:
EAN code:5901477197741
Product condition:New, originally packaged
Guarantee:24 months of consumer protection
Weight:0,10 kg
By purchasing this product, you will receive 39 points from us, which you can use for shopping in our store. This applies only to customers registered in our store.
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Diamond Core Drill Bit for Porcelain 25mm M14 (K00507)
A tool for precision drilling of holes in hard ceramic materials. Fitted with a diamond coating, it delivers lasting performance when working in glazed porcelain, technical porcelain, clinker and ceramics.
Technical features
Diamond coating
The working segment, coated with synthetic diamonds, can cut materials with a hardness above 7 on the Mohs scale. The diamond coating is abrasion-resistant, which keeps drilling parameters consistent throughout the tool's service life.
M14 mounting
The M14 thread is the standard fitting used on angle grinders from 600W upwards. The direct connection eliminates axial play and keeps the tool stable while drilling. Compatible with popular power tool brands, with no adaptors required.
Wet and dry use
The core drill is designed for drilling with water cooling (wet use) – recommended for holes over 20mm in diameter in order to extend the tool's service life. Dry use is also possible with shorter drilling cycles, which makes installation work easier where there is no access to water.
25mm diameter
A 25mm diameter hole matches the typical dimensions required for installation: basin taps (fixing bolts), furniture handles and wall hooks. This diameter provides sufficient installation clearance for standard M6-M8 fixings.
Technical specification
| Tool type | Diamond core drill bit |
| Model | K00507 |
| Working diameter | 25 mm |
| Mounting type | M14 thread |
| Materials | Glazed porcelain, technical porcelain, ceramic, clinker, porcelain, granite, marble |
| Operating mode | Wet (with water cooling) / dry |
| Coating type | Diamond coating |
| Power tool required | Angle grinder with M14 thread |
Applications
- Drilling holes for bathroom and kitchen taps in ceramic tiles
- Fitting sockets and switches in wall tiles
- Drilling holes for handles, hooks and bathroom accessories
- Service penetrations through tiles (pipes, cables)
- Fixing holes in technical porcelain on facades
- Drilling in stone kitchen and bathroom worktops
- Fitting decorative elements in clinker
- Renovation work requiring precise holes in hard materials
Use and maintenance
Preparation before use
Before fitting the core drill, check the condition of the M14 thread on the grinder – remove any dirt and residue left by previous tools. Screw the core drill on by hand, then tighten it with a spanner – avoid over-tightening, which can make removal difficult. Check the axial run-out; the maximum permitted is 0.5mm.
Drilling parameters
The recommended speed for a 25mm diameter is 4,000-6,000 rpm. Too low a speed prolongs drilling time and accelerates diamond wear. Too high a speed can overheat the material and cause chipping. Pressure on the tool should be moderate – around 3-5 kg of force. Excessive pressure does not speed up drilling; it increases the load on the motor and wears the tool faster.
Cooling during use
For wet use, apply a continuous supply of water to the drilling zone – this reduces friction, dissipates heat and can extend the life of the diamond coating by up to three times. You can use a soaked sponge or a gravity-fed system from a bottle. For dry use, drill in cycles of 10-15 seconds, with breaks to let the tool cool.
Maintenance after use
After use, clean the core drill of ceramic dust with a stiff-bristled brush. Check the condition of the diamond coating – even wear indicates correct drilling technique. Store in a dry place, protected from impact. Do not use solvents or caustic agents for cleaning.
Commercial information
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