Which materials is this diamond core bit suitable for?

It is designed for wet drilling in reinforced concrete, standard concrete, and hard stone types.

What machine connection does this core bit use?

The bit features a standard 5/4" UNC (1 1/4") female connection for professional core drills.

Is water cooling required during drilling?

Yes, this model is designed strictly for wet drilling with water feed to cool segments and flush slurry.

What are the dimensions of this diamond drill bit?

It has a drilling diameter of 111 mm and a usable working length of 400 to 420 mm.

How are the diamond segments attached?

The TT segments are laser-welded to the drill tube to ensure maximum bond strength and prevent segment loss.

CARAT EB11142020 Brilliant concrete drill 111 x 420mm 5/4" wet

Name: CARAT EB11142020 Brilliant concrete drill 111 x 420mm 5/4" wet
Brand: CARAT
SKU: 02757043
Price: 262.8 EUR
Availability: InStock

Supplier number: CARAT EB11142020 | EAN 8714452022993

Recommended Retail Price €361.79

262.80 tax incl.

€217.19 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 4 products in stock.

Ordered before 20:00 - delivered tomorrow 03/10/2026
Free shipping
Delivery by DHL

✆ Talk to a specialist

Effortless coring with Carat

Practical benefits

Fast and easy starting: Thanks to the specialized TT segments, you start drilling smoothly and precisely into hard concrete.
Laser welded segment strength: The laser-welded diamond segments give you complete reliability and prevent breakage during demanding wet drilling.
Standard drill motor connection: You mount the core bit directly onto compatible wet drilling rigs using the 5/4" UNC thread.

In a nutshell

The right choise for

With the Carat Brilliant EB11142020 diamond core bit, you drill quickly and accurately through reinforced concrete, plain concrete, and hard stone. Thanks to the specialised tt segments, you start coring smoothly and precisely without slipping off target. Laser-welded segments ensure maximum strength and prevent breakage during demanding tasks. Featuring a 111 mm diameter and a working length of 400 to 420 mm, this core bit is ideal for creating clean penetrations for plumbing pipes and ventilation ducts. The standard 5/4" unc connection fits directly onto your wet drilling motor, allowing you to achieve clean, efficient results with active water cooling.

Product information FAQ

€262.80

In stock - tax incl.

Key features according to our expert

Diameter: 111 mm
Length: 400 mm
Connection size (machine): 1 1/4"

Product description:

Diamond drill Laser Brilliant for use with water cooling in concrete and hard stone types.
Equipped with TT segments; for easy and quick starting.
Laser welded, thus 100% guarantee against weld breakage.

All Features

Diameter: 111 mm
Length: 400 mm
Connection size (machine): 1 1/4"

Brand CARAT
02757043
EAN 8714452022993
Supplier number CARAT EB11142020

Frequently asked questions about this product

Answered by specialists

Which materials is this diamond core bit suitable for?: It is designed for wet drilling in reinforced concrete, standard concrete, and hard stone types.
What machine connection does this core bit use?: The bit features a standard 5/4" UNC (1 1/4") female connection for professional core drills.
Is water cooling required during drilling?: Yes, this model is designed strictly for wet drilling with water feed to cool segments and flush slurry.
What are the dimensions of this diamond drill bit?: It has a drilling diameter of 111 mm and a usable working length of 400 to 420 mm.
How are the diamond segments attached?: The TT segments are laser-welded to the drill tube to ensure maximum bond strength and prevent segment loss.