Diamond cutting disc 125 x 22.2 mm GRAPHITE 57H621 – for cutting stone and concrete

Diamond cutting disc 125 x 22.2 mm GRAPHITE 57H621 is a segmented diamond abrasive wheel engineered for cutting stone and concrete with standard angle grinders. The disc has a 125 mm diameter and a 22.2 mm bore size suitable for most handheld grinders. Its segmented rim geometry provides efficient cutting performance with rapid material removal while helping to control dust and reduce binding when working on masonry, paving stones and construction debris.

Advantages

The segmented diamond rim ensures high cutting speed and longevity when used on abrasive materials such as concrete and natural stone. The 125 mm working diameter makes the disc compact and easy to maneuver in confined spaces and on scaffolding. Optimized segment bonding balances wear resistance and cutting efficiency to deliver consistent results across repeated cuts. The 22.2 mm bore fits common angle grinder flanges, allowing quick mounting and stable operation.

Suitable for (tasks / use cases)

• Cutting concrete slabs and blocks
• Trimming and profiling natural stone and masonry
• Cutting paving stones and curbstones
• Removing construction debris and demolition cutting
• On-site and workshop cutting with handheld angle grinders

Key specifications

• Disc diameter: 125 mm
• Bore diameter: 22.2 mm
• Rim type: segmented diamond rim
• Intended materials: concrete, natural stone, masonry, paving
• Tool compatibility: handheld angle grinders designed for 125 mm discs

How to use

Mount the diamond cutting disc on a compatible angle grinder with the correct flange and ensure the bore aligns with the grinder spindle. Verify that the disc rotates in the direction indicated on the label. Use steady, even feed pressure and allow the diamond segments to do the cutting; avoid excessive force that can cause overheating or premature wear. Make through-cuts with gradual passes for thicker material and maintain a firm two-handed grip on the tool for stability. Follow the angle grinder manufacturer's instructions, including guard positioning and personal protective equipment requirements.

Usage recommendations

For best results, use the disc on clean, dry surfaces and perform periodic cooling breaks when making extended cuts in dense concrete. Wear appropriate eye, respiratory and hearing protection, and use local dust extraction or water suppression where applicable to reduce airborne dust. Inspect the disc before each use for cracks or damage and replace if any defects are found.