3M 50426 Fibre Disc 7 Inch 36 Grit Alumina Zirconia Resin Fiber

The 3M 50426 Fibre Disc is a versatile, general-purpose metalworking abrasive engineered for demanding grinding, weld removal, finishing, and blending applications on metals like carbon steel. This 7-inch disc features alumina zirconia mineral bonded to a heavy-weight fiber backing with resin for exceptional durability and performance.

Key Specifications:

• Diameter: 7 inches with 7/8-inch arbor mounting
• Grit: 36 (coarse grit for aggressive material removal)
• Abrasive Material: Alumina zirconia for superior cutting performance
• Maximum Speed: 8,600 RPM
• Backing: Vulcanized fiber backing that is hardened and condensed for extreme durability
• Bond Type: Resin bond for heat resistance and stability
• Coat: Closed-coat construction with nearly 100% grain coverage

Performance Features:

• Heavy-weight fiber backing resists wear and deflection during aggressive grinding operations
• Closed-coat construction delivers consistent cutting action and finer finishes
• Resin bond withstands high heat and pressure to maintain disc integrity and increase productivity
• Stiff backing remains strong when working on edges and contours
• Versatile design handles multiple metalworking tasks from grinding to surface conditioning

Applications:

• Castings and forging preparation
• Deburring and surface conditioning
• Aerospace component finishing
• General industrial metalworking
• MRO (maintenance, repair, operations)
• Transportation and heavy equipment fabrication

This 3M Fibre Disc 501C series abrasive is ideal for professionals seeking a reliable, multipurpose grinding disc that delivers consistent performance across a wide range of metalworking applications.