Best Flap Discs of 2026

Tom Law Avatar
Tom Law
Last Updated: 2 Feb 2026

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Flap discs are abrasive tools that are used for grinding, blending, and finishing various surfaces. They consist of a circular disc made of multiple overlapping flaps of abrasive material, such as sandpaper, that are adhered to a central hub. Flap discs are commonly used in metalworking, woodworking, and automotive applications, and are available in a range of sizes and grits to suit different tasks. They are effective for removing rust, paint, and weld spatter, as well as for smoothing rough edges and preparing surfaces for painting or welding. Flap discs are a versatile and efficient alternative to traditional grinding wheels and sanding discs.

At a Glance: Our Top Picks

SATC 115mm Flap Discs 20 Pack for Grinding Cover #TOP 1
SATC 115mm Flap Discs 20 Pack for Grinding
ftb score rating icon 9.9
MIDO Professional 115mm Abrasive Flap Discs Cover #TOP 2
MIDO Professional 115mm Abrasive Flap Discs
ftb score rating icon 9.8
SATC 40 Grit Zirconia Flap Discs Pack Cover #TOP 3
SATC 40 Grit Zirconia Flap Discs Pack
ftb score rating icon 9.6

Top 10 Flap Discs

SATC 115mm Flap Discs 20 Pack for Grinding

SATC 115mm Flap Discs 20 Pack for Grinding Cover
SATC Flap Discs 115mm 20 Pack Grinding Discs 40/60/80/120 Grit for Angle Grinder to Sanding Grinding Metal Wood

The SATC Flap Discs are designed for durability and efficiency. Made from high-strength polyester and premium aluminium oxide, they reduce the time spent changing discs, allowing you to focus on your work. With a pack of 20 discs in various grits (40/60/80/120), you can tackle a range of tasks seamlessly. The exclusive vibration-free feature ensures a smooth grinding experience, while the contaminant-free formula promotes a healthier environment. These features make the SATC Flap Discs an excellent choice for both metal and wood applications.

What We Like
Highly durable material
Variety of grit options
Smooth grinding experience
Environmentally friendly

MIDO Professional 115mm Abrasive Flap Discs

4-1/2 x 7/8 Inch
MIDO Professional 115mm Abrasive Flap Discs Cover
MIDO Professioanl Abrasive Flap Discs 115mm 20 PCS 40/60/80/120 Assorted Grit Grinding Disc for Angle Grinder Type 27 Aluminum Oxide Flap Disc for Sanding Metal Stainless Steel Wood

The MIDO Flap Discs offer an extended lifespan thanks to their premium alumina oxide grains and durable construction. This means you can rely on them for longer usage without frequent replacements. Their upgraded performance ensures fast material removal and an excellent finish, making your grinding tasks more efficient. With four different grits included, you can easily achieve the desired result whether you need a quick cut or a smooth finish. These discs are versatile and suitable for metal and wood applications, adding convenience to your projects.

What We Like
Extended lifespan
Upgraded grinding performance
Variety of grits available
Suitable for metal and wood
#TOP 3

SATC 40 Grit Zirconia Flap Discs Pack

1600
SATC 40 Grit Zirconia Flap Discs Pack Cover
SATC Flap Discs 40 Grit 115mm Zirconia 10 Pack Grinding Discs Type 29 Sanding Discs for Angle Grinder to Sanding Grinding Metal Wood

The SATC Flap Discs are designed for durability and high performance, making them an excellent choice for your grinding needs. Made from a high-quality Zirconium/Alumina mix, they offer a long lifespan while providing a great cut versus cost ratio. Their durable glass fibre backing ensures less vibration and more strength during use, allowing you to tackle heavy-duty operations with ease. With a 15-degree bevel, these discs facilitate easy surface contact, making them ideal for aggressive applications on various metals.

What We Like
Long-lasting performance
Durable glass fibre backing
Ideal for heavy-duty tasks
Easy surface contact
Versatile for multiple metals
#TOP 4

Anesty 115mm Zirconia Flap Disc Set

UKB142
Anesty 115mm Zirconia Flap Disc Set Cover
Flap Discs 115mm 20 Pack Sanding Grinding Discs 40/60/80/120 Grit Zirconia Angle Grinder Discs for Sanding Grinding Metal Wood

The Anesty Flap Discs are versatile tools designed for sanding and grinding a variety of surfaces, including metal and wood. With their high-density Zirconia construction, these discs offer a long lifespan, allowing you to complete more tasks without frequent replacements. The premium design features a fiberglass backing plate that absorbs vibrations, ensuring a stable grinding experience. Additionally, this 20-pack includes a range of grits from 40 to 120, making it easy for you to tackle any job from coarse to fine finishes.

What We Like
Long-lasting wear life
Stable grinding experience
Variety of grits available
Compatible with angle grinders
Effective on various materials

Merryland 115mm Flap Disc for Metal Grinding

Merryland
FC1107214-10
Merryland 115mm Flap Disc for Metal Grinding Cover
Merryland Flap Disc 115 Metal for Angle Grinder, 115mm 40 Grit T29 Flap Wheel 10 Pieces, Blue Zirconium Corundum INOX Stainless Steel Iron Universal 4.5 inch, Craft-Line FC1107214-10

The Merryland Flap Disc is designed for efficient metal grinding with its long-lasting blue zirconium corundum material. You will appreciate the reinforced structure, which absorbs vibrations, ensuring a smoother operation without smearing. This disc is perfect for heavy material removal and shaping hard metals, making it versatile for various applications. Additionally, its stable performance allows for easy use with angle grinders, particularly on curved surfaces and edges, enhancing your metalworking projects.

What We Like
Long-lasting performance
Vibration absorption for smoother use
Versatile for multiple materials
Easy to operate with angle grinders
#TOP 6

YORKING 115mm Flap Discs 20 Pack Mixed Grit

0700306455190
YORKING 115mm Flap Discs 20 Pack Mixed Grit Cover
YORKING Flap Discs 115mm 20 Pack Grinding Sanding Disc Aluminum Sanding Wheels 40 60 80 120 Mixed Grit Oxide Abrasives Grinding Disc for Angle Grinders

The YORKING Flap Discs are crafted from high-quality zirconia corundum glass paper, ensuring durability and effective grinding for your projects. With a 115mm diameter and 22.2mm inner bore, these discs fit perfectly on standard angle grinders, providing you with reliable performance. The discs feature a strong fiberglass backing plate and resin bonding, which keeps the abrasives securely in place even under tough conditions like high humidity and heat, so you can work confidently. Compatible with 4.5-inch angle grinders, these discs are ideal for removing rust, smoothing weld seams, and refining edges on various materials.

What We Like
High-quality zirconia corundum
Strong fiberglass backing plate
Fits standard 4.5-inch grinders
Stable under heat and humidity
Mixed grit for versatile use
#TOP 7

Blue Spot Zirconium Flap Discs Set

19689
Black
Blue Spot Zirconium Flap Discs Set Cover
Blue Spot 19689 2 x 40/2 x 60/2 x 80 Grit Zirconium Flap Discs - Black (6-Piece)

The Blue Spot Flap Discs are designed with a diameter of 115mm, making them versatile for various grinding tasks. With a bore size of 22.2mm, they easily fit most standard grinders. You can operate these discs safely at a maximum speed of 13280 rpm, which ensures efficient performance. The conical shape is particularly beneficial for contour and edge grinding, allowing you to achieve a smoother finish on your projects. These features make the Blue Spot Flap Discs an excellent choice for both professionals and DIY enthusiasts.

What We Like
High maximum safe speed
Versatile for contour grinding
Standard bore size
Effective edge finishing

EZARC 40 Grit Zirconia Grinding Wheel

80FD4010
Standard Version
Grit 40
EZARC 40 Grit Zirconia Grinding Wheel Cover
EZARC Flap Disc 115mm 40 Grit Zirconia Grinding Wheel, Abrasive Discs Type 29 for Stainless Steel, Cast Iron and Sheet Metal, 10 Pack

The EZARC Flap Disc offers great performance thanks to its hard zirconia material, which provides a longer lifespan compared to standard aluminium oxide abrasives. This 40 grit disc is ideal for heavy stock removal, making it perfect for tackling metal or wood projects. You will appreciate the fast and efficient grinding it offers, as the glass fibre and adhesive combination ensures a clean working surface. Additionally, the bevel type 29 design allows for easier edge and corner grinding, enhancing your ability to work on welded seams at a comfortable angle.

What We Like
Long-lasting zirconia material
Ideal for heavy stock removal
Stable and efficient grinding
Convenient bevel type design
Compatible with standard angle grinders
#TOP 9

AB Tools 40 Grit Flap Discs Pack of 10

AU025_10pk
AB Tools 40 Grit Flap Discs Pack of 10 Cover
AB Tools 10 x Flap Discs 40 Grit Angle Grinder 4.5" (115mm) Flat Sanding Grinding AU025

The AB Tools Flap Discs are designed with a 115mm diameter, making them ideal for various sanding and grinding tasks. With a bore size of 22.2mm, they fit most angle grinders, ensuring compatibility and ease of use. Capable of reaching a maximum speed of 13,300 RPM, these discs provide efficient and fast material removal. Additionally, their speed of 80m/s enhances productivity, allowing you to complete your projects more quickly and effectively.

What We Like
High-speed performance
Versatile for sanding and grinding
Pack of 10 for convenience
Compatible with standard angle grinders
Durable 40 grit material

WORKPRO 10 Abrasive Discs for Angle Grinders

W124103A
WORKPRO 10 Abrasive Discs for Angle Grinders Cover
WORKPRO 10-Pack Flap Discs, Professional Zirconium Oxide 115mm x 22mm, Grit 80 for Metal Grinding & Wood Sanding, Angle Grinder Wheels

The WORKPRO Abrasive Discs are designed for optimal performance with a diameter of 115 mm and an 80 grit size. Made from high-quality zirconia corundum sandpaper, these discs provide effective grinding while keeping noise to a minimum. With a maximum rotation speed of 13,300 rpm, you can enhance your work efficiency. Their robust design ensures longer service life, making them suitable for various materials including stainless steel, metal, and wood.

What We Like
High grinding performance
Low noise and vibration
Long service life
Wide application versatility
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a flap disc used for?

Flap discs are used to conform and shape metal. They have densely layered abrasive cloth flaps that can shape certain metals while leaving a finished look. They are most commonly used in welding, machining, heavy-duty equipment, industrial maintenance, agriculture and food production.

2. What is a flap discs for grinder?

A flap disc is an abrasive product designed for right-angle grinder applications that consists of overlapping abrasive “flaps” glued radially to a backing plate. Flap discs became popular for benefits like fast stock removal and the ability to perform grinding, blending, and finishing in one product.

3. What is the highest grit flap disc?

The abrasive grains for flap discs typically range from about 36 to 120, with smaller numbers indicating larger, coarser grit and larger numbers indicating smaller, finer grit.

Editor's Notes

During our flap disc research, we found 306 flap disc products and shortlisted 10 quality products. We collected and analyzed 24,738 customer reviews through our big data system to write the flap discs list. We found that most customers choose flap discs with an average price of £15.11.

The flap discs are available for purchase. We have researched hundreds of brands and picked the top brands of flap discs, including SATC, MIDO Professional Abrasive, S SATC, Anesty, Merryland.

Written by
Tom Law Avatar

Tom Law is an adventurer who has captured his love for nature into all of his works. A native of Newcastle, Tom has always wanted to share beautiful stories alongside the lovely sights of nature. Fortunately, he took into photography on one of his many journeys and gradually grew a passion for it. Tom Law is now an expert photographer who tours the world while creating and keeping memories of his adventures. He frequently puts his thoughts and experiences into writing.