Abrasive Fiber Disc 3M Cubitron II 125x22 mm 80+ grit, pack of 25

3M Cubitron II abrasive fiber discs, size 125x22 mm with 80+ grit, are engineered for efficient metalworking operations. These discs combine a high-performance precision-shaped abrasive with a robust fiber backing to deliver rapid material removal and a consistent surface finish. Packaged as 25 discs, they are intended for use on angle grinders with a 22 mm arbor and are suitable for grinding, blending and surface preparation on steel, stainless steel and other metal alloys.

Advantages

Precision-shaped ceramic grain allows faster cut rate and cooler grinding compared with conventional abrasives, extending disc life and reducing operator interventions. The fiber backing provides stable support under pressure for even wear and consistent contact with the workpiece. The 80+ grit strikes a balance between aggressive stock removal and controlled surface roughness, enabling efficient removal of weld seams, scale and oxidation while maintaining a predictable finish.

Suitable for

• Grinding and beveling welds on carbon steel and stainless steel
• Surface preparation before painting or coating
• Removing rust, scale and oxidation from metal parts
• Blending and shaping metal edges and profiles
• Workshop and industrial angle grinder work requiring 125 mm discs

Key specifications

• Disc diameter: 125 mm
• Arbor/hole size: 22 mm
• Abrasion grade: 80+ grit
• Backing type: fiber
• Quantity per pack: 25 discs
• Recommended tool: pneumatic or electric angle grinder

How to use

Mount the disc on an angle grinder compatible with a 22 mm arbor, ensuring the grinder is disconnected from power during installation. Verify the disc is intact and free from cracks or significant damage before use. Operate the grinder at the manufacturer’s recommended speed, apply steady pressure and keep the disc moving across the work surface to avoid localized heating or gouging. Replace the disc when wear reduces cutting performance or when the disc shows signs of damage.

Recommendations

Use appropriate personal protective equipment including eye protection, hearing protection, gloves and respiratory protection suitable for metal dust. Maintain correct grinder speed and avoid side-loading beyond the disc’s intended application; inspect discs before use and store them in a dry, temperature-stable environment to preserve abrasive performance.