Diamond Grinding Disc 125 mm, Makita, model 12130 — for stone and concrete surface grinding

Makita Diamond Grinding Disc 125 mm (model 12130) is a 125 mm diamond abrasive wheel designed for efficient grinding of stone and concrete surfaces. Made for use with compatible angle grinders, the disc removes surface material, evens out irregularities and prepares substrates for sealing, polishing or further finishing. Its diamond abrasive segments provide consistent cutting performance and a long service life when applied under appropriate conditions.

Advantages

The diamond segments deliver high abrasion resistance and stable removal rates on masonry, concrete and natural stone. The 125 mm diameter balances accessibility and working area, allowing work close to edges and in confined spaces. The construction is engineered for even wear and reduced vibration during operation, which helps maintain control and a predictable grinding result.

Suitable for

• Grinding and leveling concrete floors and screeds
• Removing thin coatings, adhesives and residues from masonry
• Edge and detail work on stone, tile and concrete
• Surface preparation before sealing, polishing or applying toppings

Key specifications

• Diameter: 125 mm
• Abrasive: diamond segments
• Intended use: stone and concrete surface grinding
• Mount type: for compatible angle grinders with appropriate arbor
• Typical applications: material removal, leveling, surface preparation

How to use

Mount the disc on a compatible angle grinder following the tool manufacturer’s instructions and ensure the grinder is disconnected from power during fitting. Securely tighten the mounting flange and verify the disc spins freely before powering the tool. Operate the grinder at the recommended speed, apply steady, even pressure and move the disc across the surface in overlapping passes to achieve uniform material removal. Keep the disc cool by avoiding excessive pressure and use intermittent passes if the disc or workpiece becomes hot. Wear appropriate personal protective equipment including eye, ear and respiratory protection, and follow local safety regulations for dust control.

Usage recommendations

For optimal results, use the disc on clean, stable substrates and pair it with a grinder that matches the disc diameter and rated speed. When working with dense concrete or reinforced areas, proceed in multiple light passes rather than aggressive single passes to extend disc life and preserve surface flatness.