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  • Norton Twinfiber Abrasive Flap Disc, Type 29, Round Hole, Fiberglass Backing, Ceramic/Zirconia Alumina
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Norton Twinfiber Abrasive Flap Disc, Type 29, Round Hole, Fiberglass Backing, Ceramic/Zirconia Alumina

Available in multiple versions


Price: $3.12 - $16.42
Product Specifications
Brand Name Norton Abrasives - St. Gobain
Grit Material Type Ceramic/Zirconia Alumina
Backing Type Cloth
Construction Type Coated
Manufacturer Series Number Twinfiber
Material Type Fiberglass
Style Name Type 29
UNSPSC Code 31191506

Norton Twinfiber type 29, abrasive flap discs offer the most aggressive stock removal for mild... Read full product description



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Currently showing 1-13 of 13
Outside Diameter Grit Type Arbor Hole Diameter Fastening Type Max Rotational Speed Number of Items Part Number Part Number Price Quantity
   
4-1/2 inches 36 Grit 7/8 inches Round Hole 13000 rpm 1 63642504329 B00209U3EM
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$6.37
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4-1/2 inches 40 Grit 7/8 inches Round Hole 13000 rpm 1 63642504330 B004MYGUJU
In Stock (19)
$3.12
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4-1/2 inches 60 Grit 7/8 inches Round Hole 13000 rpm 1 63642504331 B004MYGUK4
In Stock (3)
$6.17
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4-1/2 inches 80 Grit 7/8 inches Round Hole 13000 rpm 1 63642504332 B004MYGUKE
In Stock (5)
$6.17
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4-1/2 inches 120 Grit 7/8 inches Round Hole 13000 rpm 1 63642504333 B004MYGUKO
In Stock (10)
$6.17
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6 inches 40 Grit 7/8 inches Round Hole 10200 rpm 1 63642541406 B004MYGUU4
In Stock (1)
$10.03
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6 inches 60 Grit 7/8 inches Round Hole 10200 rpm 1 63642541407 B004MYGUUE
In Stock (7)
$10.01
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6 inches 80 Grit 7/8 inches Round Hole 10200 rpm 1 63642541408 B004MYGUUO
In Stock (12)
$8.11
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7 inches 120 Grit 7/8 inches Round Hole 8500 rpm 1 63642504338 B0027SGD72
In Stock (5)
$11.74
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7 inches 36 Grit 7/8 inches Round Hole 8500 rpm 1 63642504334 B004MYGUKY
In Stock (9)
$4.93
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7 inches 40 Grit 7/8 inches Round Hole 8500 rpm 1 63642504335 B004MYGUL8
In Stock (17)
$4.93
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7 inches 60 Grit 7/8 inches Round Hole 8500 rpm 1 63642504336 B004MYGULI
In Stock (17)
$9.50
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7 inches 80 Grit 7/8 inches Round Hole 8500 rpm 1 63642504337 B004MYGULS
In Stock (13)
$4.93
Prime Eligible
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Product Features

  • Ceramic and zirconia alumina blend is a self-sharpening grit that provides excellent performance and operation on stainless steel applications
  • Type 29 reversed saucer-shape, for aggressive stock removal
  • Full Y-weight polyester , resin bonding system with heavy-duty fiber backing for increased strength, durability, absorbs vibration and has good tear resistance
  • Durable fiberglass backing plate is lightweight, helps absorb vibration, and is high-strength
  • "Supersize" grinding aid provides a cooler cutting and faster cut rate

Product Details


Product Description

Norton Twinfiber type 29, abrasive flap discs offer the most aggressive stock removal for mild steel, and ferrous metals. Norton flap discs are designed for right-angle, handheld, grinding machines for stock removal and surface blending.

With a type 29 flap disc, hold the grinder in operation at an angle between fifteen and twenty five degrees to the work surface. Steeper angles will weaken the flap edges. The weight of the backing is designated by letters J, X, Y, T or M. J is the lightest and M is the heaviest. A more flexible backing will follow irregular contours of a workpiece better than a stiffer one. Stiffer backing is more suited for regular round or flat surfaces.

Coated abrasives have individual abrasive grains spaced at a predetermined distance from one another. This is a closed-coat disc. A closed coat covers 100 percent of the surface with abrasive grains, for more stiffness and better surface finish than an equivalent open coat, where abrasive grit covers 50 to 70 percent of the surface. This disc features a resin bond. Resin bonds have good moisture resistance, are harder and less flexible than glue bonds, and have good heat resistance and grain retention. Resin bonds are useful for abrasive operations with high operating speeds, impact, and sudden loading, as the resin bond is strong and can withstand rough treatment. Use with molded rubber back-up pads, using a hard pad for aggressive cutting, a medium pad for general purpose applications, or a soft pad for contours and fine finishing work.

Ceramic and zirconia alumina blend is tougher than aluminum oxide, and is self-sharpening. It is formed in a process where alumina gel is dried and then crushed. These engineered crystals fracture and refracture at fine levels, to form a smooth, self-sharpening abrasive material. This blend has excellent performance and efficiencies on mild carbon steel, ferrous metal, cast iron applications. It offers three times the working life of aluminum oxide.

Abrasives are used for a variety of applications from shaping a part to fine finishing, depending on the grit size. Low grit numbers like 40 are coarse and are used for removing excess material and shaping a part. High grit numbers like 400 are fine and help to create a smooth surface finish.

Norton Abrasives manufactures a wide variety of sanding, sanding, and polishing abrasives, and has been located in the United States since 1885. In 1990, Saint-Gobain purchased Norton, keeping its manufacturing facilities and offices in the same location. Norton/Saint-Gobain has been recognized as a Global 100 Sustainable Company, as well as earning ISO 9000 and 14001 certification for quality and environmental management standards.


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