Translation missing: en.sections.collection_template.title: Flap Disc

Flap Discs for Blending, Deburring & Surface Finishing

Flap discs are a smart choice when you want controlled removal plus a cleaner finish—often reducing the need to switch between multiple abrasive steps. They’re commonly used for weld blending, edge smoothing, and surface refinement in metalworking and fabrication.

Choose flap discs by grit: coarser for faster blending and cleanup, medium for smoothing, and finer grits for surface improvement and prep.

Best Use Cases

  • Weld blending and cleanup.
  • Edge smoothing and deburring.
  • Surface refinement and finishing steps.

Perfect for use with angle grinders and compatible with steel, stainless steel, aluminum, and more.

Not sure which disc type you need?

Buying for a Business (Recurring Disc Use)?

Need flap discs for ongoing shop work? Contact us for business purchasing support.

FAQS

What are flap discs best used for?

They’re ideal for blending welds, smoothing edges, and refining surfaces while maintaining good control and finish quality.

What grit flap disc should I use for weld blending?

Start with coarser grits for cleanup and blending, then move to medium/finer grits if you need smoother refinement.

Are flap discs good for finishing?

Yes—many users prefer flap discs for controlled finishing steps compared to more aggressive grinding methods.

Flap disc vs grinding wheel: which should I choose?

Use a grinding wheel for heavier removal and tougher cleanup. Use a flap disc when you want controlled blending and better surface finish.

Do you support bulk orders?

Yes—contact us for recurring supply and quantity requests.

Sort by:

  • Flap Disc 40 Grit, 4-1/2" 7/8 Center Hole
    SKU 79110136
    Categories Flap Disc
    Description

    Flap Disc 40 Grit, 4-1/2" Disc Diam, 7/8 Center Hole, Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated.

    $18.26 / each
    Web price
    Flap Disc 40 Grit, 4-1/2" 7/8 Center Hole
    SKU 79110136
    Categories Flap Disc
    Description

    Flap Disc 40 Grit, 4-1/2" Disc Diam, 7/8 Center Hole, Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated.

  • Flap Disc 36 Grit 4-1/2" 7/8 Center Hole
    SKU 79110128
    Categories Flap Disc
    Description

    Flap Disc 36 Grit 4-1/2" Diam 7/8" Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated, Very Coarse Grade.

    $18.26 / each
    Web price
    Flap Disc 36 Grit 4-1/2" 7/8 Center Hole
    SKU 79110128
    Categories Flap Disc
    Description

    Flap Disc 36 Grit 4-1/2" Diam 7/8" Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated, Very Coarse Grade.

  • Flap Disc 36 Grit 4-1/2" 5/8-11 Center Hole
    SKU 79110060
    Categories Flap Disc
    Description

    Flap Disc 36 Grit 4-1/2" Diam 5/8-11 Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated, Very Coarse Grade.

    $23.99 / each
    Web price
    Flap Disc 36 Grit 4-1/2" 5/8-11 Center Hole
    SKU 79110060
    Categories Flap Disc
    Description

    Flap Disc 36 Grit 4-1/2" Diam 5/8-11 Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated, Very Coarse Grade.

  • Flap Disc 4-1/2" 7/8" Hole Coated Ceramic
    SKU 7721251
    Categories Flap Disc
    Description

    Flap Disc 4-1/2" Diam X 7/8" Hole Coated Ceramic Flap Disc50 Grit, Type 27, 13,300 Max Rpm, Coarse Grade.

    $18.98 / each
    Web price
    Flap Disc 4-1/2" 7/8" Hole Coated Ceramic
    SKU 7721251
    Categories Flap Disc
    Description

    Flap Disc 4-1/2" Diam X 7/8" Hole Coated Ceramic Flap Disc50 Grit, Type 27, 13,300 Max Rpm, Coarse Grade.

  • Flap Disc 36 Grit 7" 7/8" Center Hole
    SKU 7721194
    Categories Flap Disc
    Description

    Flap Disc 36 Grit 7" Diam 7/8" Center Hole Type 27 Ceramic Flap Disc8,600 Max Rpm, Arbor Attaching System, Coated, Very Coarse Grade.

    $35.23 / each
    Web price
    Flap Disc 36 Grit 7" 7/8" Center Hole
    SKU 7721194
    Categories Flap Disc
    Description

    Flap Disc 36 Grit 7" Diam 7/8" Center Hole Type 27 Ceramic Flap Disc8,600 Max Rpm, Arbor Attaching System, Coated, Very Coarse Grade.

  • Grinding/Polishing Flap Disc, 7", 80G
    SKU G7557195
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,7 In.,80G

    graingerSKU: null, mscSKU: null, zoro_no: G7557195, mongo_id: 65bbe5db3aaddbd5a9fef948

    $17.46 / each
    Web price
    Grinding/Polishing Flap Disc, 7", 80G
    SKU G7557195
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,7 In.,80G

    graingerSKU: null, mscSKU: null, zoro_no: G7557195, mongo_id: 65bbe5db3aaddbd5a9fef948

  • Grinding/Polishing Flap Disc, 7", 60G
    SKU G7557159
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,7 In.,60G

    graingerSKU: 59KE06, mscSKU: , zoro_no: G7557159, mongo_id: 65bbe9ec22d7a989a998588c

    $17.46 / each
    Web price
    Grinding/Polishing Flap Disc, 7", 60G
    SKU G7557159
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,7 In.,60G

    graingerSKU: 59KE06, mscSKU: , zoro_no: G7557159, mongo_id: 65bbe9ec22d7a989a998588c

  • Grinding/Polishing Flap Disc, 7", 40G
    SKU G7557131
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,7 In.,40G

    graingerSKU: null, mscSKU: null, zoro_no: G7557131, mongo_id: 65bbe5fe3aaddbd5a9ffe1a0

    $17.86 / each
    Web price
    Grinding/Polishing Flap Disc, 7", 40G
    SKU G7557131
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,7 In.,40G

    graingerSKU: null, mscSKU: null, zoro_no: G7557131, mongo_id: 65bbe5fe3aaddbd5a9ffe1a0

  • Grinding/Polishing Flap Disc, 4-1/2", 80G
    SKU G7557168
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,4-1/2 In.,80G

    graingerSKU: 59KE04, mscSKU: 95351326, zoro_no: G7557168, mongo_id: 65bbe8e222d7a989a99210a8

    $11.44 / each
    Web price
    Grinding/Polishing Flap Disc, 4-1/2", 80G
    SKU G7557168
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,4-1/2 In.,80G

    graingerSKU: 59KE04, mscSKU: 95351326, zoro_no: G7557168, mongo_id: 65bbe8e222d7a989a99210a8

  • Grinding/Polishing Flap Disc, 4-1/2", 60G
    SKU G7557116
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,4-1/2 In.,60G

    graingerSKU: 59KE03, mscSKU: 16970212, zoro_no: G7557116, mongo_id: 65bbe74b9a749db82272db88

    $11.44 / each
    Web price
    Grinding/Polishing Flap Disc, 4-1/2", 60G
    SKU G7557116
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,4-1/2 In.,60G

    graingerSKU: 59KE03, mscSKU: 16970212, zoro_no: G7557116, mongo_id: 65bbe74b9a749db82272db88

  • Grinding/Polishing Flap Disc, 4-1/2", 40G
    SKU G7557125
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,4-1/2 In.,40G

    graingerSKU: 59KE02, mscSKU: , zoro_no: G7557125, mongo_id: 65bbe90822d7a989a992f51e

    $11.44 / each
    Web price
    Grinding/Polishing Flap Disc, 4-1/2", 40G
    SKU G7557125
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,4-1/2 In.,40G

    graingerSKU: 59KE02, mscSKU: , zoro_no: G7557125, mongo_id: 65bbe90822d7a989a992f51e

  • Grinding/Polishing Flap Disc, 4.5", 40G
    SKU G7556860
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,4.5 In.,40G

    graingerSKU: 59KD85, mscSKU: , zoro_no: G7556860, mongo_id: 65bbe84622d7a989a98e7a9b

    $23.74 / each
    Web price
    Grinding/Polishing Flap Disc, 4.5", 40G
    SKU G7556860
    Categories Flap Disc
    Description Grinding/Polishing Flap Disc,4.5 In.,40G

    graingerSKU: 59KD85, mscSKU: , zoro_no: G7556860, mongo_id: 65bbe84622d7a989a98e7a9b

  • 7" x 5/8"-11 T29 - Angle Face PREDATOR Fiberglass Flap Disc, 80 Grit
    SKU G9686677
    Categories Flap Disc
    Description Flap Disc, Abrasive Type Coated, Abrasive Material Ceramic, Grade Medium, Backing Plate Material Fiberglass, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Density Rating Standard, Flap Disc Type Type 29, Overall Diameter 7 in, Series Predator AF, Backing Material Polyester, Backing Weight Y, Coating Coverage Closed, Grit 80, Maximum Operating Speed 8,600 RPM, Color Yellow

    graingerSKU: 30MT71, mscSKU: , zoro_no: G9686677, mongo_id: 65bbe6643aaddbd5a9029158

    $18.99 / each
    Web price
    7" x 5/8"-11 T29 - Angle Face PREDATOR Fiberglass Flap Disc, 80 Grit
    SKU G9686677
    Categories Flap Disc
    Description Flap Disc, Abrasive Type Coated, Abrasive Material Ceramic, Grade Medium, Backing Plate Material Fiberglass, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Density Rating Standard, Flap Disc Type Type 29, Overall Diameter 7 in, Series Predator AF, Backing Material Polyester, Backing Weight Y, Coating Coverage Closed, Grit 80, Maximum Operating Speed 8,600 RPM, Color Yellow

    graingerSKU: 30MT71, mscSKU: , zoro_no: G9686677, mongo_id: 65bbe6643aaddbd5a9029158

  • 3m, Flap Disccloth Backing, Arbor Attaching
    SKU 53073482
    Categories Flap Disc
    Description

    Flap Disccloth Backing, Arbor Attaching System.

    $13.39 / each
    Web price
    3m, Flap Disccloth Backing, Arbor Attaching
    SKU 53073482
    Categories Flap Disc
    Description

    Flap Disccloth Backing, Arbor Attaching System.

  • 3M, Flap Disccloth Backing, Arbor Attaching
    SKU 91431338
    Categories Flap Disc
    Description

    Flap Disccloth Backing, Arbor Attaching System.

    $10.23 / each
    Web price
    3M, Flap Disccloth Backing, Arbor Attaching
    SKU 91431338
    Categories Flap Disc
    Description

    Flap Disccloth Backing, Arbor Attaching System.

  • 3M, Flap Discpolyester Backing, Arbor Attachng System
    SKU 40840266
    Categories Flap Disc
    Description

    Flap Discpolyester Backing, Arbor Attaching System.

    $15.05 / each
    Web price
    3M, Flap Discpolyester Backing, Arbor Attachng System
    SKU 40840266
    Categories Flap Disc
    Description

    Flap Discpolyester Backing, Arbor Attaching System.