Which materials is this diamond core bit suitable for?

It is designed for drilling into (reinforced) concrete and hard stone.

Should this diamond drill bit be used wet or dry?

This core bit is strictly intended for wet drilling with water cooling.

What machine connection does this bit have?

It features a standard 5/4" UNC (1 1/4") connection for core drill motors.

What are the dimensions of this core bit?

The drill diameter is 46 mm and the length is 420 mm (useful length 400 mm).

How are the diamond segments attached?

The TT segments are laser-welded onto the tube for maximum durability.

CARAT EB04642020 Brilliant concrete drill 46 x 420mm 5/4" wet

Name: CARAT EB04642020 Brilliant concrete drill 46 x 420mm 5/4" wet
Brand: CARAT
SKU: 02757019
Price: 160.6 EUR
Availability: PreOrder

Supplier number: CARAT EB04642020 | EAN 8714452023136

Recommended Retail Price €200.86

160.60 tax incl.

€132.73 excl. VAT (incl. all environmental contributions)

On order: delivered from 13/10/2026

Ordered before 20:00 - delivered as of 13/10/2026
Free shipping
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Efficient Carat core drill bit

Practical benefits

Fast cutting in concrete: Laser-welded segments allow you to drill smoothly and rapidly through reinforced concrete and dense natural stone.
Robust laser-welded construction: Laser-welded segments ensure high durability without segment detachment during demanding wet drilling operations.
Standard connection for motors: You easily mount this 46 mm bit onto your drilling rig using the standard 5/4"UNC female thread.

In a nutshell

The right choise for

With the Carat Brilliant EB04642020 diamond core drill bit, you drill quickly and accurately through reinforced concrete and hard stone. Thanks to its laser-welded tt segments, you work with complete confidence and no risk of segment detachment. Designed specifically for wet drilling with water cooling, it prevents overheating and maximizes segment durability. Featuring a 46 mm diameter and a useful drilling length of 400 mm, it allows you to create clean pass-through holes for plumbing, drainage, and electrical conduits in thick walls or floors. The standard 5/4"UNC thread attaches directly to your core drilling rig.

Product information FAQ

€160.60

tax incl.

Key features according to our expert

Diameter: 46 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: 46 mm
Length: 400 mm
Connection size (machine): 1 1/4"

Brand CARAT
02757019
EAN 8714452023136
Supplier number CARAT EB04642020

Frequently asked questions about this product

Answered by specialists

Which materials is this diamond core bit suitable for?: It is designed for drilling into (reinforced) concrete and hard stone.
Should this diamond drill bit be used wet or dry?: This core bit is strictly intended for wet drilling with water cooling.
What machine connection does this bit have?: It features a standard 5/4" UNC (1 1/4") connection for core drill motors.
What are the dimensions of this core bit?: The drill diameter is 46 mm and the length is 420 mm (useful length 400 mm).
How are the diamond segments attached?: The TT segments are laser-welded onto the tube for maximum durability.