Diamond core drill bits
Clean core holes in concrete, reinforced concrete and masonry – with core bits in many diameters and the right accessories.
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Wet core drill bits 52x450mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 42x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 40x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 38x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 35x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 32x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 30x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 28x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 26x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 24x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 20x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 18x350mm
Concrete · Granite · Natural stone
On request
Wet core drill bits 16x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 14x350mm
Concrete · Granite · Natural stone
In stock
Wet core drill bits 12x350mm
Concrete · Granite · Natural stone
In stock
Choosing the right core bit
First choose the hole diameter and your machine’s connection, for example 1 1/4" UNC or R 1/2". Then the material decides: reinforced concrete needs segments that cut rebar cleanly, while a fast-cutting bond suits masonry and brick.
The working length determines how deep you drill in one pass. Longer bits pay off for wall penetrations; short versions are enough for boxes and installations.
Wet or dry core drilling
Wet core bits work with water flushing, cool the segment and carry away the slurry – the right choice for concrete and large diameters on a rig. Dry core bits suit masonry and smaller diameters, ideally with dust extraction. Accessories such as pilot aids make a clean start easier.
Frequently asked questions
Which connection does my core drill need?
Most core drilling machines use 1 1/4" UNC or R 1/2". You will find the connection in your machine’s manual and in each core bit’s technical data.
Why is my core bit drilling more slowly?
Often the segments have glazed or the water flow is too high. Reduce the water slightly and drill briefly into abrasive material to expose the diamonds again.
Can you re-tip worn core bits?
Yes. We inspect your core bit and replace the segments on request. Just contact us through our service.
Not sure what fits? We advise you personally – by phone, email or contact form.
Request advice