Which materials is this diamond core bit suitable for?

It is designed for wet drilling in (reinforced) concrete and hard to very hard (natural) stone.

What machine connection does this core bit have?

It features a standard 5/4" UNC (1 1/4") female thread connection for compatible diamond core drilling machines.

Is water cooling required during operation?

Yes, this is a wet-use core bit. Water supply is required to cool the segments and flush out slurry.

What are the dimensions of this core bit?

It has a drilling diameter of 141 mm and a working length of 420 mm.

How are the diamond segments attached?

The segments are laser-welded to the core barrel, ensuring high strength and preventing segment detachment during heavy use.

CARAT EB14142020 Brilliant concrete drill 141 x 420mm 5/4" wet

Name: CARAT EB14142020 Brilliant concrete drill 141 x 420mm 5/4" wet
Brand: CARAT
SKU: 02757058
Price: 354.2 EUR
Availability: PreOrder

Supplier number: CARAT EB14142020 | EAN 8714452023068

Recommended Retail Price €442.86

354.20 tax incl.

€292.73 excl. VAT (incl. all environmental contributions)

On order: delivered from 07/10/2026

Ordered before 20:00 - delivered as of 07/10/2026
Free shipping
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Reliable wet core drilling performance

Practical benefits

Superior Carat diamond cutting: Laser-welded diamond segments let you drill efficiently through reinforced concrete and dense masonry materials.
Ample length for deep penetrations: The 420 mm working depth enables you to complete full through-holes for plumbing and electrical installations.
Standard 5/4" UNC fitting: You achieve a secure, wobble-free mount on compatible drilling rigs for smooth everyday operation.

In a nutshell

The right choise for

The Carat Brilliant EB14142020 diamond core bit delivers fast, clean drilling through reinforced concrete, standard concrete, and hard natural stone. Laser-welded diamond segments ensure strong, break-resistant performance during heavy coring tasks. With a 141 mm diameter and a 420 mm working length, you can easily drill deep penetrations for ventilation ducts, drainage pipes, and commercial utility runs. Designed for wet use, water cooling flushes away slurry and prevents bit overheating. The standardized 5/4" unc connection fits directly onto compatible diamond core drilling rigs, providing stable power transfer and wobble-free operation on every job.

Product information FAQ

€354.20

tax incl.

Key features according to our expert

Diameter: 141 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: 141 mm
Length: 400 mm
Connection size (machine): 1 1/4"

Brand CARAT
02757058
EAN 8714452023068
Supplier number CARAT EB14142020

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 and hard to very hard (natural) stone.
What machine connection does this core bit have?: It features a standard 5/4" UNC (1 1/4") female thread connection for compatible diamond core drilling machines.
Is water cooling required during operation?: Yes, this is a wet-use core bit. Water supply is required to cool the segments and flush out slurry.
What are the dimensions of this core bit?: It has a drilling diameter of 141 mm and a working length of 420 mm.
How are the diamond segments attached?: The segments are laser-welded to the core barrel, ensuring high strength and preventing segment detachment during heavy use.