Diamond Grinding Blade Makita D-62290 for Concrete, 180 x 22.23 mm, Single (Coarse)

Makita D-62290 is a diamond grinding blade designed for efficient concrete surface work. With a diameter of 180 mm and a 22.23 mm bore, this single-segment coarse wheel is built to remove material rapidly for grinding, leveling and preparing concrete floors, edges and slabs. Intended for use with compatible angle grinders, the wheel combines a robust diamond segment with a solid steel core to deliver aggressive cutting performance on worn or uneven concrete surfaces.

Advantages

The single-segment coarse design provides fast material removal and effective grinding rate on concrete, reducing time spent on rough preparation tasks. Its 180 x 22.23 mm format fits many common angle grinders, offering straightforward replacement and stable mounting. The diamond abrasive bond is optimized for durability during heavy use, while the open segment layout helps clear debris and control heat build-up during prolonged operation.

Suitable for

• Grinding and leveling concrete floors and slabs
• Removing high spots, thin coatings or cementitious residues
• Edge preparation and smoothing of concrete borders
• Surface preparation before overlays, coatings or repairs

Key specifications

• Diameter: 180 mm
• Bore size: 22.23 mm
• Segment type: single coarse diamond segment
• Material application: concrete
• Intended use: grinding, leveling and surface preparation
• Compatibility: designed for angle grinders with matching arbor size

How to use

Mount the blade on an angle grinder that accepts a 22.23 mm arbor, ensuring the grinder is unplugged or its battery is removed during installation. Verify that the blade is secured by the flange and nut according to the tool manufacturer’s instructions and that the rotation direction matches the arrow on the blade. Begin grinding at low to medium feed pressure, allowing the diamond segment to remove material progressively; avoid applying excessive force which can overheat the blade or damage the concrete. Maintain a steady motion across the surface for uniform results and pause periodically to inspect the work and let the blade cool if needed.

Usage recommendations

Use appropriate personal protective equipment including eye protection, respiratory protection and hearing protection. For optimal performance on very hard or abrasive concrete, test the blade on a small area to confirm cutting rate and finish, and adjust speed or technique accordingly. Replace the blade if segments are worn down below safe operating dimensions or if damage to the core is visible.