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Diamond Tile Drills


Street Solutions UK supplies a full range of diamond tile drills to drilling contractors, electrical and plumbing contractors, civil engineers, and groundworkers across the UK. Our products are used for creating clean, precise circular penetrations through concrete, brick, masonry, and reinforced structures, and all meet relevant BS EN standards and PUWER.
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Street Solutions UK is a trusted UK supplier of diamond tile drills and related diamond drilling and core drilling. We pride ourselves on competitive pricing, fast UK delivery, and expert product support. Whether you're a sole trader or a national contractor, our team is ready to help you find the right solution. All products comply with relevant BS EN standards and PUWER. Browse the full range online or contact us for a trade quote.

Wax filled or slotted barrel

Two designs sit in this range and they solve the same problem differently.

Wax filled bits carry a solid lubricant inside the barrel. As the bit heats, the wax softens and cools and lubricates the cutting edge, so the drill works dry. That makes them the practical choice on a wall, at height or anywhere water cannot run.

Slotted barrel bits are open-ended and need a water feed or a sponge, which makes them better for the larger diameters and for long runs where heat would exhaust the wax.

Heat is what kills a tile drill. A bit that goes blue has been run dry and fast, and it will not come back.

Starting a hole without it skating

Glazed porcelain is hard and slippery, and a bit walked across a tile face leaves a scratch that cannot be repaired.

Start at a shallow angle so only the edge of the barrel is in contact, then bring the drill upright once it has bitten. Run slowly, use no hammer action whatsoever, and let the diamond do the work rather than pushing. A masking tape patch or a guide jig helps on the first hole of the day.

Porcelain is considerably harder than ceramic. If the tile is porcelain, expect the hole to take three or four times as long and do not respond to that by pressing harder.

M14 or hex fit

M14 bits thread straight onto an angle grinder spindle. Hex shank bits go into an ordinary drill chuck.

The grinder route is faster and steadier for repeat work; the drill route is more controllable at low speed, which is what a first hole in an expensive tile wants. An M14 to hex adaptor in this range lets one set of bits do both.

Finishing the hole

Countersink profiler cones open a drilled hole out to a larger diameter and chamfer the edge, which is how a tap or waste outlet gets a clean seat. Router fingers shape and enlarge an opening sideways rather than deepening it, for cut-outs around sockets and pipework.

These are the tools that turn an accurate hole into a finished job, and they are considerably faster than trying to nibble a tile to shape.

For larger diameter drilling in masonry, see diamond core drills.


Frequently Asked Questions

What is the difference between wet and dry diamond core drilling? +

Wet core drilling uses a continuous water supply to cool the diamond bit and suppress dust, making it ideal for hard concrete and reinforced structures. Dry drilling uses vacuum dust extraction and is better suited to brick and block.

What diameters are diamond core drill bits available in? +

Diamond core bits are available from 12mm for cable entries up to 250mm and beyond for larger pipe penetrations and structural cores. The diameter required depends on the pipe or cable being installed.

Can diamond core drills be used on reinforced concrete? +

Yes — diamond-embedded core bits are specifically designed to cut through reinforcing steel bars (rebar) within concrete. Wet drilling is recommended for reinforced applications to maximise bit life.

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