Diamond Grinding Disc 125 mm Cup Silver — for Angle Grinders, model 12161

Silver Diamond Grinding Disc 125 mm Cup (model 12161) is a 125 mm cup-style diamond grinding disc designed for angle grinders. The disc features a continuous diamond-coated rim and a robust metal cup body that provides efficient material removal on stone, concrete, masonry and other hard surfaces. It is suitable for surface preparation, shaping edges, removing coatings, and coarse grinding tasks on construction and renovation sites where a reliable diamond abrasive is required.

Advantages

The diamond-coated rim delivers aggressive cutting performance and consistent wear resistance for extended service life compared with conventional abrasives. The cup design ensures stable contact with flat and slightly curved surfaces, improving grinding control and reducing operator fatigue. Constructed with a durable metal core and precision-bonded diamond segments, the disc maintains shape during heavy use and provides predictable material removal rates on a variety of mineral substrates.

Suitable for

• Grinding and smoothing concrete floors and patches
• Shaping and trimming natural stone and engineered stone edges
• Removing mortar, thin-set, adhesives and coatings from masonry
• Preparing surfaces for leveling compounds and repairs

Key specifications

• Disc diameter: 125 mm
• Type: cup-style diamond grinding disc
• Compatibility: for use with angle grinders accepting 125 mm accessories
• Cutting surface: diamond-coated rim suitable for stone, concrete and masonry
• Construction: metal cup body with bonded diamond abrasive

How to use

Mount the disc on the angle grinder according to the machine manufacturer’s instructions and ensure the grinder is switched off and unplugged or the battery removed before fitting. Use appropriate personal protective equipment including eye protection, hearing protection, dust mask and gloves. Start the grinder and allow it to reach full speed before engaging the workpiece. Apply steady, even pressure and move the disc across the surface with controlled passes; avoid forcing the tool to prevent overheating and uneven wear. Keep the work area well ventilated and clean accumulated dust regularly during extended operations.

Usage recommendations

For best results, use the disc on clean, stable surfaces and match grinder speed to the material—moderate-to-high RPMs for efficient grinding on concrete and stone. Replace the disc when performance declines or the diamond rim shows significant wear. Store the disc flat in a dry place to prevent damage to the bonded segments.