Standard Abrasives Surface Conditioning Flap Disc, 821210, 4-1/2 in x 7/8 in MED, 5/Carton, Case of 50

• Constructed for long life, flexibility, heat-resistance and load-resistance
• Excellent choice for aluminum, steel and titanium substrates
• Made with aluminum oxide for fast cut rate and long life
• Non-woven flaps combine deburring, blending and finishing into one step for greater efficiency
• Open web responds to surface irregularities and minimizes gouging of the part
• Overlapping flaps increase durability and enhance cut rate
• Phenolic resin plate provides cushion effect for optimal blending and dampens vibration, reducing operator fatigue and tool wear

Suitable for a variety of substrates, the Standard Abrasives Surface Conditioning Flap Disc effectively blends, deburrs and finishes in one step. It can also be used for light grinding. The overlapping flaps provide several layers of abrasives for increased durability and enhanced cut rate. The versatility of the Surface Conditioning Flap Disc makes it a handy standby in any workshop.

Durable and Heat-Resistant
Ideal for light deburring and blending applications where final finish is important, the Standard Abrasives™ Surface Conditioning Flap Disc delivers a fast cut and consistent finish in a single step. The non-woven nylon material is both durable and load-resistant, making this an especially long-lasting disc. The heat resistant open web makes this an excellent choice for use on aluminum, stainless steel, and titanium.

Recommended Applications
This non-woven aluminum oxide product offers an excellent solution for deburring, edge breaking, blending, cleaning, finishing, and polishing after traditional grinding is done with a Resin Fiber or Flap Disc. Use it for deburring milled surfaces and edges, preparing for anodizing, blending weld seams, removing flash and parting lines, and removing scratches or weld discoloration.

Engineered for Single-Step Efficiency and Extended Utility
Flap discs are three-dimensional discs with overlapping layers of non-woven, scrim-reinforced flaps that fan out from a central hub. The overlapping layers continually expose fresh abrasive mineral for a fast cut, while the cushioning of the flaps creates a consistent, blended finish. The one-step alternative to coated discs, surface conditioning flap discs deburr and finish in a single step, making them a time and cost-saving solution in many typical applications. And, because their overlapping construction allows more abrasive material to be loaded onto the cutting surface, they far outlast typical discs. Flap discs have the flexibility to easily follow curves and contours while delivering less gouging and enhancing operator comfort.

Using a Flap Disc
Flap discs are used on a right angle grinder. Flap discs with a 7/8˝ center hole can be secured onto a right angle sander with a compatible disc retainer nut (sold separately). Flap discs with a 5/8-11 internal thread are designed to be mounted directly to tools with 5/8-11 EXT threaded shafts.

Our Standard Abrasives™ Surface Conditioning Flap Disc is designed with a Type 29 conical profile. Flaps are angled to provide more aggressive cutting action, making this profile ideal for stock removal and faster results on edge work, flats and contours.

Quality Standard Abrasives™ Solutions for Industrial Applications
The Standard Abrasives brand has supplied quality abrasives to the metalworking industry for over 50 years. Customers rely on our broad offering of high performance products including coated, bonded, and non-woven abrasive lines.

Standard Abrasives Model

The Standard Abrasives Surface Conditioning Flap Disc, model 821210, is designed for durability and efficiency. This flap disc combines long life and heat resistance, making it a reliable choice for various metalworking tasks.

Its construction supports flexibility and load resistance, ensuring consistent performance. The model 821210 is a trusted option for professionals needing a dependable surface conditioning tool.

Precise Dimensions Included

This flap disc measures 4-1/2 inches in diameter with a 7/8 inch arbor hole, fitting many standard grinders. These dimensions allow it to work effectively on edges, flats, and contours for detailed surface work.

Its size makes it suitable for light grinding and finishing tasks, providing a balance between aggressive cutting and smooth blending. The 4-1/2 in x 7/8 in size is ideal for a range of metal substrates.

Durable Format And Technology

The flap disc features overlapping non-woven flaps made with aluminum oxide, ensuring a fast cut rate and long life. This format blends deburring, blending, and finishing into a single step for greater efficiency.

Its phenolic resin backing plate cushions the tool, reducing vibration and operator fatigue. The open web design minimizes gouging and adapts to surface irregularities, enhancing the quality of the finish.

Efficient Pack Size Options

Available in packs of 5 per carton and 50 per case, this flap disc suits both small workshops and larger industrial needs. The pack sizes make it easy to stock up for ongoing projects without frequent reordering.

Having multiple discs on hand ensures continuous work flow, especially when handling multiple substrates like aluminum, steel, and titanium. The 5/Carton and 50 ea/Case packaging supports efficient inventory management.

Versatile Use And Benefits

Ideal for aluminum, steel, and titanium, this flap disc excels in deburring, blending, and finishing tasks. Its Type 29 conical profile offers aggressive cutting action, speeding up stock removal on various surfaces.

The disc fits right angle grinders with a 7/8 inch center hole, compatible with standard retainer nuts. This versatility makes it a practical tool for many metalworking applications requiring precision and durability.