Standard Abrasives Surface Conditioning Flap Disc, 821310, 4-1/2 in x 7/8 in VFN, 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 821310, 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, which helps maintain consistent performance. The model 821310 is a trusted option for professionals needing a dependable surface conditioning tool.

Precise Size And Format

This flap disc measures 4-1/2 inches in diameter with a 7/8 inch arbor hole, fitting most right angle grinders. The VFN (Very Fine Non-woven) format ensures a smooth finish while blending and deburring surfaces efficiently.

The 4-1/2 in x 7/8 in VFN size allows for easy handling and precise control during use. Its design supports a Type 29 conical profile, which is ideal for stock removal and working on edges and contours.

Efficient Pack Quantity

Each carton contains 5 flap discs, and a full case holds 50 discs, making it easy to stock up for ongoing projects. This pack size supports both small workshops and larger industrial operations.

Having 5 discs per carton ensures you have enough supply for multiple jobs without frequent reordering. The 50 discs per case option is perfect for high-volume users who need consistent availability.

Durable Aluminum Oxide

The flap disc is made with aluminum oxide abrasive, known for its fast cut rate and long-lasting performance. This material is excellent for working on aluminum, steel, and titanium substrates.

Aluminum oxide helps the disc maintain sharpness through extended use, reducing downtime. Its abrasive quality supports deburring, blending, and finishing in one step, saving time on surface preparation.

Versatile Surface Conditioning

The flap disc’s non-woven flaps combine deburring, blending, and finishing into a single step, improving workflow efficiency. Its open web design minimizes gouging and adapts to surface irregularities.

Overlapping flaps increase durability and enhance cut rate, while the phenolic resin plate cushions the tool to reduce vibration and operator fatigue. This makes it a versatile tool for various metalworking tasks.