Best Medium Flap Discs in 2026

Benchmark Abrasives 4.5" x 7/8" T29 flap disc is ideal for sanding, grinding, deburring, finishing, etc. for cast Iron, steel, stainless steel, titanium, fiberglass, wood, and more.

Zirconia high-density flap discs are manufactured using European zirconia cloth. The European material is superior due to its uniform particle size and premium blend of ingredients.

Designed to meet industrial standards, our high-quality flap discs are recommended to be used with angle grinders sized 4-1/2" to 5“. These Type 29 flap discs are versatile products used for aggressive stock removal and surface blending.

👍 STRONGEST FIBER BACKING THAN OTHER PRODUCTS: 4 1/2 grinding wheels made for TOP-LEVEL Hard zirconia.Good material for griding wheel. This Flap Disc is constructed of industrial grade high density premium zirconia material, increased durability than standard flap discs, built for a more robust and economical grinding wheel.

👍 LONGEST LASTING: Grinder sanding disc has long lasting time. Safe and Effective. Durable Material. Fast polishing,and it’s has durable fiberglass backing and fine crystal size.T29 flap disc construction with fiberglass backing plate effectively absorbs vibrations without smear during usage, bring more stable & efficient grinding.

👍 BEST MATCH SIZE:Flap disc 4-1 2 inch with 40/60/80/120 Grit 4 different grits total 20 packs.This 20 Pack flap disc set includes 10 pieces of 40 grit, 5 pieces of 60 grit, 3 pieces of 80 grit and 2 pieces of 120 grit, great Choice for cutting various metals, perfectly meets all you need.

VALUE PACK: 40 60 80 120 grit Assorted, 4-1/2 Inch Diameter, 7/8 Inch Arbor, Type #27, 13300RPM maximum speed

HIGH PERFORMANCE: Premium resin-bonded aluminum oxide abrasive produces high performance: durable, good abrasion resistance, anti-static and anti-clogging

Fiberglass backing providing durability and reinforcement

【Great Performance】EZARC flap sanding discs are made of hard zirconia material which lasts longer than standard aluminum oxide abrasive material, built for a more robust and economical grinding wheel.

【 Widely Used】40 grit flap disc is coarser in build and is ideal for heavier stock removal. Our flap disc is widely used for metal or wood, to remove the weld reinforcement, deburring, polishing, and to rust removal.

【 Fast & Efficient Grinding 】Glass fiber and adhesive form a firm combination, will not pollute the working surface. The fiberglass pad can effectively absorb vibration and bring more stable and efficient grinding.

[Get More Cutting Power]: The ABN 80 Grit Sanding Disc 10-Pack is a flap wheel kit that is a blend of zirconia and aluminum oxide grain; Round sandpaper discs will self-sharpen for a more powerful, abrasive cut on carbon and mild steel applications

[Reduce Vibrations]: One-sided zirconia sanding disk constructed from resin fiber with a fiberglass backing plate to offer extra strength and absorb vibrations without smudges or smears during use; Circle sander sandpaper is semi-open to reduce loading on aluminum surfaces

[80 Grit to Remove Heavier Stock]: Angle grinder sand paper is designed for working on flat surfaces; 80 grit sandpaper discs are coarser in build to easily work surfaces such as stainless steel, aluminum, and non-ferrous metal; Avoid forcefully pushing down on sand disk to prevent wear or damage

27 Pack premium angle grinder wheel set consisted with 3 kinds of grinder discs: 20 pcs cutting wheel in 3/64” thick; 5 pcs grinding wheel in 1/4” thick; 2 pcs 80 Grid flap disc. Great cutting and grinding wheel set for Metal and Stainless Steel.

Part 1 - cutting wheel: 20 pcs cut-off wheel set is specially formulated for fast cutting in metals and stainless steel. 3/64-inch ultra thin design for fast burr free cutting with minimal material loss, make cutting project more precise and efficient.

Part 2 - grinding wheel: 5 pcs Premium 4-1/2” Depressed Center Metal Grinding Wheels for metal and stainless steel, A24T Aluminum Oxide Grains for Aggressive Grinding and High Stock Removal.

PREMIUM QUALITY: These flat flap discs, also known as cut off wheels 4 1/2 inch, are constructed with industrial grade premium zirconia abrasive for strength, durability, and extended disc life as it holds up to high temperatures and pressure.

STOCK REMOVAL: Each angle grinder sanding disc is made with coarse 40 grit zirconia alumina, making this abrasive flap disc ideal for aggressive grinding on hard to grind materials like metal, rubber, plastic, fiberglass, and wood.

FLAT T27: These flat Type 27 discs are effective for blending, smoothing, finishing flat surfaces, deburring, grinding contours, and radius grinding on steel, sheet metal, welding, machining, heavy duty equipment and industrial maintenance.

Long Lasting Premium Zirconia Grains

Works well on all types of metals

Perfect for finishing work, deburing, and grinding

40PCS 40/60/80/120 Grit assorted pack, each grit 10 pcs, 4-1/2 Inch Diameter, 7/8 Inch Arbor

Premium resin-bonded aluminum oxide abrasive produces high performance:durable,good abrasion resistance,anti-static and anti-clogging

GREAT PERFORMANCE - Each 4.5" x 7/8-Inch arbor size flap disc is compatible with angle grinders operatable of up to 17,000 RPM.

💡 Extreme Durability and Value - Made of hard zirconia alumina material which lasts longer than standard aluminum oxide abrasive material. These flap discs also feature durable fiberglass backing plates requiring less pressure for heavy stock removal and provides with extra secure safe assurance - absorbing vibrations without smear during usage

💡 More Emery Cloth - Each flap disc has 80 pieces of emery cloth which is much more efficient than other all 72-piece-emery-cloth abrasive grinding wheels now on the market. It more effectively improves the durability and density of the flap discs.

💡 20PCS T29 & 4PCS T27 - T29 Includes 10pcs 40 grit / 5pcs of 60 grit / 3pcs 80 grit / 2pcs 120 grit, better for frequently contouring, shaping surfaces and more aggressive grinding during projects. T27 includes 4pcs 40 grit as a complement to the project requirements of flat sanding and smoothing. Perfect collocation for all your project needs

【Premium Alumina Oxide Flap Disc】The 4 1/2 inch Aluminum Oxide angle grinder flap disc is durable, abrasion-resist, anti-static and anti-clogging. Your ideal cost effective sanding disc for most DIY applications

【10 Pcs X 80 Grit】This premium flap disc set includes 10Pcs x 80 Grit 4.5 inch diameter with 7/8" arbor size. Maximum speed 18,000 RPM (> 13,000 MAX RPM) Fits for most 4 1/2 Inch grinders: DEWALT DCG414B, DWE402, Makita 9557PBX1, Bosch 1375A, etc

【80 Grit for Metal&Wood】Suitable for metals, wood, rust, paint, stainless steel and plastics. ▶NOT for concrete or stone. Can be used for grinding, deburring, rust removal, cleaning and finishing on both contoured and flat surfaces 【TIPs】No need to press down too hard it will work much better and easier

LARGE QUANTITY & ASSORTED TYPES – 28-pack of 4 1/2 inch 40 60 80 120 grit flap discs, 7-pack of each grade. Great choice for cutting various metals, perfectly meets all your needs.

EXTREME DURABILITY AND VALUE – The flap sanding discs are made of TOP-LEVEL hard zirconia alumina material, which lasts longer than standard aluminum oxide abrasive material, built for a more robust and economical grinding wheel.

FLAP DISCS WITH FIBERGLASS BACKING PLATE - Grinder sanding discs have long-lasting use. A safe and effective product made with durable Material. It’s fast polishing, and it has durable fiberglass backing and fine crystal size. The flap discs are made with a fiberglass backing plate that effectively absorbs vibrations without smear during usage, bringing more stable and efficient grinding.

40 / 60 / 80 / 120 assorted grit flap discs satisfying your polishing requirements from coarse to fine, 4-1/2 Inch Diameter, 7/8 Inch Arbor, Type #27, 13300RPM maximum speed

Zirconia alumina grain with a superior cut rate and service life to aluminum oxide

Fiberglass backing providing durability and reinforcement

THE PERFECT DUAL-GRIT, DUAL-TYPE COMBO - if you want just two flap disc grits and types, this combo pack is it - including 10 Type 29 40-grit discs and 10 Type 27 80-grit discs

HEAVY CUTTING AND BLENDING - the 40 grit angle-flapped Type 29 is the perfect flap disc for stock removal, beveling, and weld blending on both contoured and flat surfaces, with the angled flaps enabling the user to hold the angle grinder at a natural, angled positioning while still allowing the disc to maintain 100% contact with the grinding surface

LIGHTER BLENDING AND FINISHING - the 80 grit flat Type 29 is ideal for standard blending, cleaning and finishing, and other abrasive jobs, such as rust removal

High Grinding Efficiency - the surface of the sanding discs is equipped with a heat-resistant and anti-stick coating, and the high-strength aluminum oxide raw material which improve the grinding efficiency by 55% while ensuring the smooth surface of the material

T29 15°Design, widely used - Our flap disc adopts T29 15° design, which is suitable for fine grinding of flat, curved, chamfered and concave-convex surfaces. The thick cloth base and high-tenacity cotton lining make the sanding discs more flexible, can be reached an excellent polishing effect

Thickened Glass Fiber Mesh Cover - The glass fiber mesh cover design of our grinding wheels is combined BASF (resin adhesive),it is more wear-resistant than an ordinary plastic mesh cover so that the service life is increased by 2 times. The blade knob is made of PE which will not break even at 13500RPM

Various grit: This premium flap disc includes 4pcs of 40 grit, 2pcs of 60 grit, 2pcs of 80 grit, 2pcs of 120 grit. Different grades ranging from rough to fine can meet almost all your grinding requirements.

Durable: 4 1/2 flap disc provides long service life with industrial grade premium blue zirconia for strength, durability.

Application: Flap disc for angle grinder is effective for blending, smoothing, finishing flat surfaces, deburring and grinding contours. Abrasive grinding wheel is perfect for radius grinding on steel, sheet metal, welding, machining, heavy duty equipment and industrial maintenance.

Size:100mm x 16mm（4''x5/8''), For use on an Angle Grinder

Designed for grinding, blending, sanding and finishing on a wide range of material. Especially suitable for stainless steel also great for mild steel. Flap discs sanding wheel are used to grind rough workpiece surfaces, fast grinding, such as valve castings, angle irons, steel plates, welds, weld scars, rust removal, deburring, etc.

Premium high density calcined aluminum is characterized by hard-wearing,long life. The type 27 Abrasive grinding wheels are made with a fiberglass backing plate that effectively absorbs vibrations without smear during usage, bringing more stable and efficient grinding.

Type 29 (Angled) - Choose 10 Pack of 40, 60, 80 or 120

Works well on all types of metals

Perfect for finishing work, deburing, and grinding

These nylon flap discs are brand New,Low noise,Long service life

Scouring pad buffing wheel With high flexibility,The self-sharpening,High grinding efficiency,Good heat dissipation.

Nylon Fiber Flap Polishing Grinding Wheel ideal for effective dry sanding, grinding, polishing and contour work.Great for removing rust.

You will get: 48 pieces flap discs with assorted grits (40, 60, 80 and 120 grit), 12 pieces for each grit, and 1 piece 2 inch sander disc holder with 1/4 inch shank double rod replacement, totalling 49 pieces

Fitting size: the diameter of the sand table is 2 inches, and the thickness is 1.5 mm; The diameter of the pallet is 2 inches to match the sand table; The size of the zirconium corundum torque sand table is also just two inches to fit

Quality material: the use of quality aluminum and rubber materials for the plate will provide firmness and strength to the disc holder, making it suitable for electric drills, die grinders, air grinders, angle grinders and other electric or pneumatic tools

Premium high density calcined aluminum is characterized by hard-wearing,long service life. Resin fiber construction with fiberglass backing plate absorbs vibration without smear during use, bringing more stable & efficient grinding.

This angle grinder attachments grinding disc is designed to grind, blend, sand and finish on a wide range of material. Especially suitable for stainless steel also great for mild steel. 320 grit fine flap disc grinder disc is ideal for finishing work on surfaces like wood. NOTICE: Please Wear Protective Equipments Before Use!

Size:115mm x 22mm(4 1/2 x 7/8 inch) ,Type 29, For use on an Angle Grinder. Flat Type #29 flap sanding disc sanding grinding wheels, 13300RPM maximum speed. Easy to install and wide compatibility

✅ 5 Makita Premium Angled BALANCED COARSENESS Z80 Flap Disc for Metal & Stainless Steel | 4 1/2" x 7/8" Z80 Balanced Grit for Stock Removal, Deburring, Rust & Paint Removal & Blending | Optimized for Makita 4-1/2” Angle Grinders and compatible with All 4-1/2” Angle Grinders with 5/8” arbor

✅ GRIND, CONDITION, DEBUR, REMOVE RUST & PAINT 3X LONGER than lower quality flap discs & 15X Longer than Fiber Resin Sanding Discs due to Makita’s carefully selected Zirconia-Aluminum Oxide ingredients, Grain Grit & Proprietary Strong Bond Matrix, that gives this disc better grit-wear uniformity yielding better PERFORMANCE, STABILITY & LONGEVITY, allowing you to grind longer and more consistently than other discs in its class

✅ EASILY CONTROL, SMOOTHLY DEBUR & CONDITION flat or contoured METAL work surface areas including rebar, steel pipe, structural & galvanized steel, sheet metal, structural tubing, black steel, stainless steel, in addition to non-ferrous metals like, Aluminum, Zinc, Copper, Brass & Lead over an extra-long life span due to Makita’s proprietary bonded flap integrity, allowing for consistent wear and reliable conditioning with less sparks, lower vibration and less operator fatigue

DIMENSIONS - Includes 20pc 4-1/2 x 7/8 inch flap disc, 6pc 40 grits, 6pc 60 grits, 4pc 80 grits, 4pc 120 grits.

APPLICATION - Designed for grinding, blending and finishing on a wide range of metal, for use on an Angle Grinder.

MATERIAL - Zirconia grit enables 3X faster material removal than fiber resin metal sanding discs.

Ideal 3M flap disc for medium-duty applications like weld removal and surface preparation

Built with 3M Precision-Shaped Grain for an exceptionally fast cut, helping increase productivity

Poly-cotton backing delivers controlled, even wear in medium unit pressure applications

【Unique Design】This SI FANG upgrade U-shaped flap disc is different from the traditional T27/T29 flap disc, the radial structure shape allows precise grinding of fillet welds and repair applications. The R angle of the 4-inch flap disc can not only be ground on flat and curved surfaces, but also in difficult-to-grind locations such as welds.

【Wide Range of Use】60 grit curve flap wheel flapper wheel are the best choice for power cutting and can be used for contour and edge work, and their angled flaps provide greater surface contact. Mold repair of iron and non-ferrous metals, stainless steel plates, angle steel, stone and plastics, as well as grinding of welding seams, weld marks, and burrs of stamping parts.

【High Cost Performance】Zirconia Abrasive Angle Grinder Sanding Disc allows a continuous supply of the sharpest cutting edges and provides the fastest cut as well as the best utilization of the entire grit for the longest life.

Grit:60# 100# 200# 400# ,Package :4pieces

Diameter:5 inch/ 125mm, Inner hole 22.23mm,Material:ELectroplated diamond

Features:More than 100 times working life,Save a lot of loading and unloading time,Perfect processing effect