3M Cubitron 3 7100379929/1169F Flap Disc, 40+, T29-Conical Quick Change, 4-1/2 in x 5/8 in-11, Case of 10

Specifications:

• Brand: 3M
• Product Line: Cubitron 3
• Manufacturer Part Number: 7100379929 / 1169F
• Abrasive Type: Precision Shaped Ceramic Grain
• Grit Size: 40+ (coarse)
• Disc Style: Flap
• Disc Profile: T29 Conical
• Mounting: 5/8 in-11 threaded hub
• Disc Diameter: 4-1/2 in
• Backing Material: Durable poly-cotton cloth Grain
• Bonding: Resin bonded
• Application Speed: High-performance grinding and blending
• Packaging: Case of 10

Ideal Industries:

• Metal fabrication
• Industrial manufacturing
• Construction
• Shipbuilding and marine repair
• Oil and gas maintenance
• Automotive and heavy equipment repair

Ideal Applications:

• Heavy stock removal
• Aggressive surface grinding
• Weld seam removal
• Edge beveling
• Rust and scale removal
• Surface preparation prior to coating or welding

The 3M Cubitron 3 7100379929 / 1169F Flap Disc with 40+ grit is engineered for professionals who demand fast cut rates, long service life, and consistent results in high-pressure grinding applications. Built with 3M’s latest precision shaped ceramic grain technology, this T29 conical flap disc delivers aggressive material removal while running cooler than traditional ceramic or aluminum oxide abrasives, helping reduce heat discoloration and operator fatigue. Buyers often ask whether 40+ grit is considered coarse—yes, this grit is designed specifically for heavy stock removal, weld grinding, and rapid leveling of metal surfaces rather than fine finishing. The conical T29 profile provides improved access on edges and contours, making it ideal for beveling and weld blending on carbon steel, stainless steel, and other hard metals. Another common question is whether Cubitron 3 flap discs last longer than standard grinding discs; the answer is yes, thanks to the self-sharpening grain that fractures evenly, maintaining sharp cutting points throughout the disc’s life and reducing changeovers. Compatible with standard 4-1/2 inch angle grinders using a 5/8-11 threaded arbor, this quick-change flap disc offers both productivity and control for industrial users who prioritize efficiency and safety. Professionals searching for high-performance ceramic flap discs, coarse grinding abrasives, or premium 3M grinding solutions will find this product well-suited for demanding environments. Enviro Safety Products supplies this disc as a trusted, experienced distributor of certified PPE and industrial safety solutions, ensuring customers receive authentic products backed by expert support and industry knowledge.

TOP BRANDS

Shop the most trusted safety brands at Enviro Safety.

PRODUCT SPECIALISTS

Got a question? Call and ask one of our trained Product Specialists.

FAST EASY SAVINGS

Get what you need. Save time and money. Let's do this!

CUSTOMER SERVICE

Yes, we answer the phone and reply to email. We're here for you!

CORPORATE ACCOUNTS

Setup an online account. Apply for credit. And more.