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, 4.5x5/8-11, T27, ZS Reg, 60G
    SKU G4112348
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,T27,ZS Reg,60G

    graingerSKU: null, mscSKU: null, zoro_no: G4112348, mongo_id: 65bbe5fe3aaddbd5a9ffe1fd

    $8.11 / each
    Web price
    Qty
    Minimum order: 10
    Flap Disc, 4.5x5/8-11, T27, ZS Reg, 60G
    SKU G4112348
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,T27,ZS Reg,60G

    graingerSKU: null, mscSKU: null, zoro_no: G4112348, mongo_id: 65bbe5fe3aaddbd5a9ffe1fd

    $8.11 / each
    Web price
    Qty
    Minimum order: 10
  • Flap Disc, 4.5x5/8-11, T27, ZS Reg, 40G
    SKU G4112451
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,T27,ZS Reg,40G

    graingerSKU: , mscSKU: , zoro_no: G4112451, mongo_id: 65bbe6863aaddbd5a90375e8

    $7.81 / each
    Web price
    Qty
    Minimum order: 10
    Flap Disc, 4.5x5/8-11, T27, ZS Reg, 40G
    SKU G4112451
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,T27,ZS Reg,40G

    graingerSKU: , mscSKU: , zoro_no: G4112451, mongo_id: 65bbe6863aaddbd5a90375e8

    $7.81 / each
    Web price
    Qty
    Minimum order: 10
  • SAIT 71265 Encore Fiberglass Backed Flap Disc (Type 29) 7" x 7/8", 36 Grit, 10-Pack
    SKU G9797331
    Categories Flap Disc
    Description Flap Disc, Abrasive Type Coated, Abrasive Material Zirconia Alumina, Grade Extra Coarse, Series Encore, Backing Material Fiberglass Backing, Backing Weight X, Grit 36

    graingerSKU: null, mscSKU: null, zoro_no: G9797331, mongo_id: 65bbe5fe3aaddbd5a9ffe25b

    $16.99 / each
    Web price
    Qty
    Minimum order: 10
    SAIT 71265 Encore Fiberglass Backed Flap Disc (Type 29) 7" x 7/8", 36 Grit, 10-Pack
    SKU G9797331
    Categories Flap Disc
    Description Flap Disc, Abrasive Type Coated, Abrasive Material Zirconia Alumina, Grade Extra Coarse, Series Encore, Backing Material Fiberglass Backing, Backing Weight X, Grit 36

    graingerSKU: null, mscSKU: null, zoro_no: G9797331, mongo_id: 65bbe5fe3aaddbd5a9ffe25b

    $16.99 / each
    Web price
    Qty
    Minimum order: 10
  • Flap Disc, 4.5x5/8-11, C3 Cmpct Cer Rg, 80G
    SKU G4112040
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,C3 Cmpct Cer Rg,80G

    graingerSKU: , mscSKU: 63009666, zoro_no: G4112040, mongo_id: 65bbe8c222d7a989a9912a3e

    $8.19 / each
    Web price
    Qty
    Minimum order: 10
    Flap Disc, 4.5x5/8-11, C3 Cmpct Cer Rg, 80G
    SKU G4112040
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,C3 Cmpct Cer Rg,80G

    graingerSKU: , mscSKU: 63009666, zoro_no: G4112040, mongo_id: 65bbe8c222d7a989a9912a3e

    $8.19 / each
    Web price
    Qty
    Minimum order: 10
  • Flap Disc, 4.5x5/8-11, C3 Cmpct Cer Rg, 60G
    SKU G4111952
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,C3 Cmpct Cer Rg,60G

    graingerSKU: 267T28, mscSKU: 63009658, zoro_no: G4111952, mongo_id: 65bbe6433aaddbd5a901ac83

    $9.86 / each
    Web price
    Qty
    Minimum order: 10
    Flap Disc, 4.5x5/8-11, C3 Cmpct Cer Rg, 60G
    SKU G4111952
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,C3 Cmpct Cer Rg,60G

    graingerSKU: 267T28, mscSKU: 63009658, zoro_no: G4111952, mongo_id: 65bbe6433aaddbd5a901ac83

    $9.86 / each
    Web price
    Qty
    Minimum order: 10
  • Flap Disc, 4.5x5/8-11, C3 Cmpct Cer Rg, 40G
    SKU G4111830
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,C3 Cmpct Cer Rg,40G

    graingerSKU: 267T27, mscSKU: 63009641, zoro_no: G4111830, mongo_id: 65bbe90822d7a989a992f57c

    $11.24 / each
    Web price
    Qty
    Minimum order: 10
    Flap Disc, 4.5x5/8-11, C3 Cmpct Cer Rg, 40G
    SKU G4111830
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,C3 Cmpct Cer Rg,40G

    graingerSKU: 267T27, mscSKU: 63009641, zoro_no: G4111830, mongo_id: 65bbe90822d7a989a992f57c

    $11.24 / each
    Web price
    Qty
    Minimum order: 10
  • Flap Disc, 4.5x5/8-11, C3 Cmpct Cer Rg, 36G
    SKU G4111742
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,C3 Cmpct Cer Rg,36G

    graingerSKU: , mscSKU: 63009633, zoro_no: G4111742, mongo_id: 65bbe6643aaddbd5a9029173

    $9.99 / each
    Web price
    Qty
    Minimum order: 10
    Flap Disc, 4.5x5/8-11, C3 Cmpct Cer Rg, 36G
    SKU G4111742
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,C3 Cmpct Cer Rg,36G

    graingerSKU: , mscSKU: 63009633, zoro_no: G4111742, mongo_id: 65bbe6643aaddbd5a9029173

    $9.99 / each
    Web price
    Qty
    Minimum order: 10
  • Flap Disc, 4.5x5/8-11, T27, A3, Reg, 60G
    SKU G4112083
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,T27,A3,Reg,60G

    graingerSKU: , mscSKU: , zoro_no: G4112083, mongo_id: 65bbe8479a749db822783cfd

    $7.99 / each
    Web price
    Qty
    Minimum order: 20
    Flap Disc, 4.5x5/8-11, T27, A3, Reg, 60G
    SKU G4112083
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,T27,A3,Reg,60G

    graingerSKU: , mscSKU: , zoro_no: G4112083, mongo_id: 65bbe8479a749db822783cfd

    $7.99 / each
    Web price
    Qty
    Minimum order: 20
  • Flap Disc, 4.5x5/8-11, T27, A3, Reg, 40G
    SKU G4111961
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,T27,A3,Reg,40G

    graingerSKU: 267T45, mscSKU: 02555340, zoro_no: G4111961, mongo_id: 65bbea1022d7a989a9993cc1

    $8.24 / each
    Web price
    Qty
    Minimum order: 10
    Flap Disc, 4.5x5/8-11, T27, A3, Reg, 40G
    SKU G4111961
    Categories Flap Disc , Flap Wheels
    Description Flap Disc,4.5x5/8-11,T27,A3,Reg,40G

    graingerSKU: 267T45, mscSKU: 02555340, zoro_no: G4111961, mongo_id: 65bbea1022d7a989a9993cc1

    $8.24 / each
    Web price
    Qty
    Minimum order: 10
  • 7" x 5/8"-11 T29 - Angle Face PREDATOR Fiberglass Flap Disc, 120 Grit
    SKU G9686661
    Categories Flap Disc
    Description Flap Disc, Abrasive Type Coated, Abrasive Material Ceramic, Grade Fine, 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 120, Maximum Operating Speed 8,600 RPM, Color Yellow

    graingerSKU: 30MT73, mscSKU: , zoro_no: G9686661, mongo_id: 65bbe7cc3aaddbd5a90b8634

    $21.11 / each
    Web price
    Qty
    7" x 5/8"-11 T29 - Angle Face PREDATOR Fiberglass Flap Disc, 120 Grit
    SKU G9686661
    Categories Flap Disc
    Description Flap Disc, Abrasive Type Coated, Abrasive Material Ceramic, Grade Fine, 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 120, Maximum Operating Speed 8,600 RPM, Color Yellow

    graingerSKU: 30MT73, mscSKU: , zoro_no: G9686661, mongo_id: 65bbe7cc3aaddbd5a90b8634

    $21.11 / each
    Web price
    Qty
  • Flap Disc 80 Grit, 4-1/2" Type 27
    SKU 91431932
    Categories Flap Disc
    Description

    Flap Disc, M3 80 Grit, 4-1/2" Disc Diam, Type 27 Flap Disccloth Backing, Arbor Attaching System.
    $15.74 / each
    Web price
    Qty
    Flap Disc 80 Grit, 4-1/2" Type 27
    SKU 91431932
    Categories Flap Disc
    Description

    Flap Disc, M3 80 Grit, 4-1/2" Disc Diam, Type 27 Flap Disccloth Backing, Arbor Attaching System.
    $15.74 / each
    Web price
    Qty
  • Flap Disc M3, 36 Grit, 4-1/2" 5/8-11 Center Hole
    SKU 71370043
    Categories Flap Disc
    Description

    Flap Disc M3, 36 Grit, 4-1/2" Disc Diam, 5/8-11 Center Hole, Type 29 Zirconia Alumina Flap Disc13,300 Max Rpm, Cloth Backing, Arbor Attaching System, Coated.
    $24.82 / each
    Web price
    Qty
    Flap Disc M3, 36 Grit, 4-1/2" 5/8-11 Center Hole
    SKU 71370043
    Categories Flap Disc
    Description

    Flap Disc M3, 36 Grit, 4-1/2" Disc Diam, 5/8-11 Center Hole, Type 29 Zirconia Alumina Flap Disc13,300 Max Rpm, Cloth Backing, Arbor Attaching System, Coated.
    $24.82 / each
    Web price
    Qty
  • Flap Disc 80 Grit, 5" 7/8" Center Hole
    SKU 39181169
    Categories Flap Disc
    Description

    Flap Disc, M3 80 Grit, 5" Disc Diam, 7/8" Center Hole, Type 29 Ceramic Flap Disc12,000 Max Rpm, Cloth Backing, Arbor Attaching System, Coated.
    $12.77 / each
    Web price
    Qty
    Flap Disc 80 Grit, 5" 7/8" Center Hole
    SKU 39181169
    Categories Flap Disc
    Description

    Flap Disc, M3 80 Grit, 5" Disc Diam, 7/8" Center Hole, Type 29 Ceramic Flap Disc12,000 Max Rpm, Cloth Backing, Arbor Attaching System, Coated.
    $12.77 / each
    Web price
    Qty
  • Flap Disc M3, 120 Grit 7, 7/8" Center Hole
    SKU 79110326
    Categories Flap Disc
    Description

    120 Grit 7" Diam 7/8" Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated, Fine Grade.
    $31.64 / each
    Web price
    Qty
    Flap Disc M3, 120 Grit 7, 7/8" Center Hole
    SKU 79110326
    Categories Flap Disc
    Description

    120 Grit 7" Diam 7/8" Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated, Fine Grade.
    $31.64 / each
    Web price
    Qty
  • Flap Disc M3, 120 Grit 7, 5/8-11 Center Hole
    SKU 79110268
    Categories Flap Disc
    Description

    120 Grit 7" Diam 5/8-11 Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated, Fine Grade.
    $39.43 / each
    Web price
    Qty
    Flap Disc M3, 120 Grit 7, 5/8-11 Center Hole
    SKU 79110268
    Categories Flap Disc
    Description

    120 Grit 7" Diam 5/8-11 Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Coated, Fine Grade.
    $39.43 / each
    Web price
    Qty
  • Flap Disc M3, 120 Grit 4-1/2, 7/8 Center Hole
    SKU 79110169
    Categories Flap Disc
    Description

    120 Grit 4-1/2" Diam 7/8" Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Fine Grade.
    $18.26 / each
    Web price
    Qty
    Flap Disc M3, 120 Grit 4-1/2, 7/8 Center Hole
    SKU 79110169
    Categories Flap Disc
    Description

    120 Grit 4-1/2" Diam 7/8" Center Hole Type 29 Zirconia Alumina Flap Disccloth Backing, Arbor Attaching System, Fine Grade.
    $18.26 / each
    Web price
    Qty