Cut circular through-holes in concrete, masonry and stone for pipes and services.

Diamond core bit H300 Breaker
Also known as: core drill bit
Key features
- MaterialDiamond
- ApplicationCutting and drilling
- ConnectionCompatible with drilling machinery with 1¼" connection
- SizesH300
What it is
The diamond core bit H300 by Breaker is the ideal solution for high-performance drilling in concrete, masonry and stone materials. Designed to withstand the most intense stresses, this diamond core bit delivers clean, fast cuts, reducing working time and optimising productivity on site. Compatible with high-end drilling machines, it fits professional building standards perfectly, offering reliability and consistent results even in the most demanding applications.
A TCT or diamond core bit is a core cutter for large-diameter holes in concrete, masonry, tiles and stone; this category includes arbors, adaptors and pilot drills.
What it is for
Used for core drilling concrete and masonry, for service openings and sampling, for drilling reinforced concrete, in hammer or rotary hammer mode and for running services through walls, floors and suspended ceilings.
How to use it
Fit the core bit to the arbor or adaptor suited to the machine, with the pilot drill to centre the hole. TCT core bits for masonry work with the rotary hammer in hammer mode, diamond core bits without hammer action, wet or dry depending on the type. Once the core bit has cut a groove, the pilot drill can be removed; continue with moderate pressure, withdrawing the tool frequently to clear the dust.
Where it is used
- Demolition
- Building services
- Renovation
Technical data
- Material: Diamond
- Application: Cutting and drilling
- Connection: Compatible with drilling machinery with 1¼" connection
- Sizes: H300
Who it is for
Designed for demolition operatives, plumbers, bricklayers and heating and plumbing engineers.
Related products
- Diamond core bit H400 Breaker
- Diamond core bit H170 Breaker
- Core drill C202 Breaker — from the category Electric Core Drills
- Stand for core drill L 200 Breaker — from the category Core Drilling Equipment
- Hydraulic rock drill HRD 20 Breaker — from the category Rotary Hammers
- Browse the whole category: TCT and Diamond Hole Saws
Before you order
In your request, please state the connection type and the quantities required, so we can give you the right quotation first time.
For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.
Specifications 4
| Material | Diamond |
|---|---|
| Application | Cutting and drilling |
| Connection | Compatible with drilling machinery with 1¼" connection |
| Sizes | H300 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Complete the core drill with core bits, extensions, stands and water and extraction systems.
Vacuum dust, debris and liquids on site and in the workshop, also when connected to power tools.
For safety
Protect hearing from the noise of machines and tools by reducing the sound reaching the ear.




