3M Cubitron 3 7100379978/1169F Flap Disc, 40+, T27-Flat, 7 in x 7/8 in, Case of 5

Specifications:

• Brand: 3M
• Product Line: Cubitron 3
• Manufacturer Part Number: 7100379978 / 1169F
• Product Type: Flap Disc
• Grit: 40+
• Grade: Coarse
• Disc Type: T27-Flat
• Diameter: 7 in
• Arbor Size: 7/8 in
• Abrasive Technology: Precision-Shaped Grain
• Attachment Type: Center hole for angle grinder
• Application: Grinding, weld removal, beveling, edge work
• Use: Right angle grinder
• Maximum Speed: 8,600 rpm
• Packaging: Case of 5

Ideal Industries:

• Metal fabrication
• Structural steel
• Shipbuilding
• Oil and gas
• Heavy equipment manufacturing
• Automotive manufacturing
• Industrial maintenance and repair

Ideal Applications:

• Heavy weld removal
• Aggressive stock removal
• Beveling and chamfering
• Edge grinding
• Surface preparation prior to coating or painting
• Deburring thick metal
• Blending hard weld seams

The 3M Cubitron 3 7100379978 / 1169F Flap Disc, 40+, T27-Flat, 7 in x 7/8 in is engineered for professionals who demand aggressive material removal without sacrificing control or disc life. Built with advanced 3M Precision-Shaped Grain technology, this 7-inch coarse 40+ grit flap disc is designed to cut faster and run cooler than conventional zirconia or aluminum oxide abrasive discs. The T27 flat profile makes it ideal for flat surface grinding, weld seam leveling, beveling, and heavy stock removal on carbon steel, stainless steel, and other ferrous metals. Contractors often ask whether a 40+ grit flap disc is suitable for both weld removal and surface blending—the answer is yes. This coarse grade excels at rapid weld knockdown while still allowing controlled blending when paired with proper grinder speed and technique. Another common question is whether Cubitron 3 flap discs last longer than traditional coated abrasives; due to the continuously fracturing triangular grain structure, they maintain sharp cutting edges longer, reducing changeovers and downtime in high-production environments. For shops focused on productivity, reduced operator fatigue, and consistent cut rates, this disc delivers measurable efficiency gains. Designed for use with a 7-inch right angle grinder and a standard 7/8 inch arbor, it integrates seamlessly into most industrial grinding setups. When sourcing performance-driven abrasive solutions, professionals rely on Enviro Safety Products as an experienced and trusted supplier of certified PPE and industrial-grade abrasives, ensuring that fabrication teams, maintenance crews, and heavy-industry operators receive products that meet rigorous safety and performance standards.

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