Abrasive Fiber Disc 125x22 mm K120 3M Cubitron for Stainless Steel, Pack of 25

Fiber abrasive discs 125 x 22 mm with K120 grit from 3M Cubitron are designed for efficient metalworking on stainless steel and other metals. Supplied as a pack of 25 discs, these 125 mm discs feature a 22 mm centre hole for use with angle grinders and compatible backing pads. The Cubitron abrasive formulation provides consistent material removal and a claimed longer life compared with conventional abrasives, making the discs suitable for grinding, blending and finishing tasks on metal surfaces.

Advantages

These 3M Cubitron fiber discs combine precision-cut abrasive grain and a robust fibre backing to deliver steady stock removal and even wear across the disc surface. The K120 grit balances cutting speed with surface finish, producing a finer result than lower grit options while maintaining effective cutting action. The standard 125 mm diameter and 22 mm hole ensure compatibility with a wide range of angle grinders and backing pads used in metal fabrication and maintenance.

Suitable for

• Grinding and shaping stainless steel components
• Blending weld seams and smoothing joints
• Surface preparation before painting or coating
• Light deburring and edge rounding on metal parts
• General metal finishing and maintenance work

Key specifications

• Disc diameter: 125 mm
• Centre hole diameter: 22 mm
• Abrasive grit: K120
• Backing type: fiber
• Pack quantity: 25 discs
• Intended materials: stainless steel and other metals

How to use

Mount the disc on a compatible angle grinder or backing pad that accepts a 22 mm centre hole, ensuring the tool is disconnected from power during fitting. Use appropriate rotational speed according to the grinder manufacturer’s recommendations and the disc’s maximum operating speed. Apply steady, even pressure and maintain a consistent angle while moving the disc across the metal surface to achieve uniform material removal. Allow the abrasive to do the cutting; avoid excessive force that can cause premature wear or overheating.

Usage recommendations

Always wear suitable personal protective equipment including eye protection, gloves, hearing protection and respiratory protection when grinding stainless steel. For best results on stainless steel, use moderate pressure to minimise heat build-up and discoloration. Replace discs when the abrasive is worn down or if the backing shows damage. Store discs flat in a dry environment away from direct sunlight and extreme temperatures.