Makita D-79902 Diamond Core Bit 5mm M14

The Makita D-79902 Diamond Core Bit is a precision-engineered tool designed for drilling clean and accurate holes in hard materials. With a diameter of 5mm and a standard M14 connection, this core bit is built for compatibility with most angle grinders, making it a versatile addition to any professional toolkit. Its robust steel construction ensures long-lasting performance and reliability during intensive drilling tasks in construction and renovation projects.

Advantages

This diamond core bit offers exceptional durability and efficiency when working with demanding materials. The high-quality diamond coating allows for smooth material penetration, reducing the risk of surface damage and ensuring precise hole placement. Its compact 5mm size is ideal for specialized applications where accuracy is paramount, while the M14 thread provides a secure and stable connection to power tools, minimizing vibrations during operation.

Suitable for

• Drilling precise holes in ceramic tiles
• Working with natural stone and porcelain
• Professional renovation and construction tasks
• Installation of fixtures and anchors

When it may not be suitable

This core bit is specifically designed for hard materials and may not be suitable for drilling into soft wood, plastic, or thick metal sheets, as these materials can clog the diamond segments or cause overheating. It is not intended for use with hammer drills or tools without an M14 spindle connection.

Key specifications

• Diameter: 5mm
• Connection type: M14 thread
• Material: Steel body with diamond coating
• Compatibility: Standard angle grinders

How to use

To use the Makita diamond core bit, securely attach it to the M14 spindle of your angle grinder. Ensure the tool is unplugged or the battery is removed during installation. Start the drilling process at a slight angle to establish the initial cut, then gradually straighten the tool to a perpendicular position. Maintain steady, light pressure and allow the diamond segments to do the work. It is recommended to use the tool at the appropriate speed settings for the material being drilled.

What to consider before purchase

• Ensure your angle grinder supports the M14 connection standard
• Verify the material hardness is compatible with diamond-tipped tools
• Consider the need for cooling if drilling deep holes
• Check the warranty terms for your specific usage requirements

Usage recommendations

For optimal results and to extend the lifespan of the diamond core bit, avoid applying excessive force. Use a consistent, light pressure and periodically lift the bit from the hole to clear debris and allow for cooling. Always wear appropriate personal protective equipment, including safety glasses and respiratory protection, when drilling.