Diamond core drill bit 55mm M14 max 12000 rpm MN-76-255

55mm diamond core drill for demanding materials

The 55mm diameter diamond core drill has been specifically designed for precision drilling in the most demanding finishing materials. It performs excellently when working with porcelain stoneware, ceramic tiles, clinker, and glaze, where traditional tools often fail.

The dry drilling system eliminates the need for water cooling, which significantly simplifies the work process and allows for operation in any conditions. The internal thermal wax serves as a natural coolant - during drilling, it melts and dissipates heat from the diamond segments, preventing overheating and extending the tool's service life.

Precision workmanship without material damage

The design of the core drill enables point guidance throughout the entire drilling process, resulting in perfectly smooth hole edges without cracks, chips, or material breakage. This is particularly important for delicate surfaces such as glaze or thin ceramic tiles.

A diamond segment height of 10 mm ensures an optimal balance between cutting efficiency and tool durability. This profile allows for a fast working pace while maintaining high precision.

Vacuum Brazed Technology

Vacuum Brazed technology is a key element of this core drill's construction. This process ensures a clean and strong bond between the diamond segments and the steel body, which translates to:

• Increased resistance to high temperatures generated during friction against hard materials
• Higher tool service life thanks to stable diamond mounting
• Stable cutting performance throughout the entire period of use

The body, made of durable special steel, does not crack even when drilling small diameters at high speeds. This feature is particularly important when working with very hard materials like porcelain stoneware.

Work efficiency and operating parameters

A maximum rotational speed of 12 000 rpm allows for the full utilization of the power of most angle grinders available on the market. This parameter enables a fast working pace while maintaining control over the cutting process.

The cooling system based on melted wax operates automatically - it requires no additional adjustment or monitoring of the tool temperature during operation.

Tool compatibility

The standard M14 thread mount fits most angle grinders available on the market. Installation is quick and does not require additional adapters or specialized tools.

Remember to regularly remove the debris generated during drilling - a clean core drill surface ensures optimal cooling conditions and extends the life of the diamond segments.

Practical application

The tool is effective both in the hands of professional installers and advanced DIY enthusiasts planning bathroom or kitchen renovations. The design enables precision work even at smaller diameters - the cooling system remains effective regardless of the hole size.

The stable body construction and durable mounting of the diamond segments guarantee long-term use without the need for frequent tool replacement.