The Best Inch Flap Discs of 2023

Benchmark Abrasives uses only the highest quality grains and backing material for our flap discs.

Designed for grinding, blending, sanding and finishing on a wide range of material.

The #1 choice for welders and metal fabricators.

Made in accordance with ANSI safety requirements.

For use on an Angle Grinder

Extended lifespan – All 4-1/2’’ x 7/8’’ flap discs are made of premium alumina oxide grains, polyester flaps and multi-layered fiberglass plates, making them more durable than other flaps discs on the market

Upgraded Performance – Our 4.5 inch flap discs use thicker abrasive clothes and more durable abrasive grains for ultimate grinding performance and user experience

Well-designed pack – coarser grit discs are more widely and frequently used, our 20 pack contains 4 different grits(40 grit, 60 grit, 80grit, 120 grit), 5 pieces of each grit.

Wide Application – 4-1/2 inch x 7/8 inch flap discs fit most angle grinders and alumina oxide grains can be applied to metal & wood grinding, polishing and finishing

Type #27 – T27 flap discs are perfect for smoothing and blending surface

Benchmark Abrasives uses only the highest quality grains and backing material for our flap discs.

Designed for grinding, blending, sanding and finishing on a wide range of material.

The #1 choice for welders and metal fabricators.

Made in accordance with ANSI safety requirements.

For use on an Angle Grinder

Hard-wearing, long service life for our flap disc

Especially suitable for stainless steel also great for mild steel

The flap disc is designed for use with all 115mm (4.5") angle grinders

Ideal for use on wood, metal and plastic

Ideal for The Home, Workshop, Hobbyists, Tradesmen, Builders and DIY Enthusiasts, etc.

Delivers longlasting high performance and versatility at a value price

Contains 3M PrecisionShaped Grain, which cuts faster and lasts longer than conventional abrasive grain

Proven to outperform traditional alumina zirconia flap discs

Individual flaps break down, exposing fresh mineral to deliver consistent cut rate for the life of the disc

Ideal for use on carbon steel, stainless steel and other heatsensitive alloys

Covers a wide range of applications from weld grinding and beveling to surface prep

[PREMIUM QUALITY]: These flap discs 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 disc is made with coarse 40 grit zirconia alumina making this abrasive flap disc ideal for aggressive grinding on hard materials like metal.

[BEVEL]: These Bevel Type 29 discs are angled to be more effective for contours, edge and weld blending, and radius grinding.

[RESIN FIBER]: The resin fiber construction complemented by the fiberglass backing plate absorbs vibrations without smearing or contaminating workpiece during usage.

[SPECIFICATIONS]: Each disc measures at a 4-1/2-inch diameter with a 7/8-inch arbor size, making it compatible with grinders with a speed of up to 13,300 RPM.

👍 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.

👍 FITS T29 ANGLE GRINDER: Angle grinder sanding disc can be used for universal applications, ranging from metal or woodworking, concrete grinding or finishing, stone smoothing so on.This metal cutting discs is ideal for grinding, debarring, and light grinding on a variety of surfaces, can be used for metal or woodworking, concrete grinding or finishing, stone smoothing or finishing, to rust removal and more.

👍 SUPER VAULE: Grinding discs 4 1/2 max RPM 13300, wear eye protection keep all guards.Please read and follow ansl safety CODE B7.1. Fit for T29 grander. Choose your right grit to use.Each disc measures at 4-1/2-inch diameter with a 7/8-inch arbor size, making it compatible with angle grinders operable of up to 13,300 RPM. Designed for grinding, blending, sanding and finishing on a wide range of material.

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

Premium abrasive cloth provides up to 15 X longer life than fiber resin metal sanding discs

Type 29 fiberglass backing provides grinding angle of 20-25 degrees

Benchmark Abrasives uses only the highest quality grains and backing material for our flap discs.

Designed for grinding, blending, sanding and finishing on a wide range of material.

The #1 choice for welders and metal fabricators.

Made in accordance with ANSI safety requirements.

For use on an Angle Grinder

Designed for grinding, blending, sanding and finishing on a wide range of material.

Benchmark Abrasives uses only the highest quality grains and backing material for our flap discs.

For use on an Angle Grinder

Made in accordance with ANSI safety requirements.

The #1 choice for welders and metal fabricators.