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Merit Powerflex Contoured Abrasive Flap Disc, Type 29, Threaded Hole, Aluminum Backing, Zirconia Alumina

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Product Specifications
Attachment Type
Threaded Hole
Material Type
Aluminum
Construction Type
Coated
Grit Material Type
Zirconia Alumina
Brand Name
Merit
Manufacturer Series Number
Powerflex Contoured
Backing Type
Cloth
Style Name
Type 29
UNSPSC Code
31191506

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Disc Diameter Grit Size Arbor Diameter Maximum Speed Pkg Qty Mfr Part # ASIN

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Currently showing 1-3 of 3
4-1/2" 40 Grit 5/8-11" 13300 rpm 1 08834190103 B004MYGTHS yes $11.87 Buy Options
4-1/2" 60 Grit 5/8-11" 13300 rpm 1 08834190104 B004MYGTI2 yes $12.26 Buy Options
4-1/2" 80 Grit 5/8-11" 13300 rpm 1 08834190106 B0042T3E1M yes $10.39 Buy Options

Key Features

  • Zirconia alumina is self-sharpening, and more durable than aluminum oxide
  • Type 29 reversed saucer-shape depressed center flap discs are used for grinding and finishing
  • Closed coat for a higher-quality finish than an open-coat disc
  • A sturdy aluminum plate center, no backing pad necessary
  • Cooler grind to prevent discoloration of the workpiece

Product Description

Merit PowerFlex contoured abrasive flap discs have layered abrasive flaps that wear away evenly. The angled face and zirconia alumina abrasive are suitable for fast material removal rates and aggressive grinding. These discs produce a high-quality, consistent finish.

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. The cooler operating temperature of PowerFlex discs prevents bluing, which is unwanted discoloration of the workpiece that may be blue, brown, or yellow. For a comparable finish to a resin fiber disc, use a flap disc one grit size coarser than the fiber disc.

Zirconia alumina is a self-sharpening abrasive that allows for a faster cut rate and longer life than aluminum oxide, due to its ability to fracture and refracture, creating new cutting edges. Zirconia alumina is often used for high stock removal on metals and wood.

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.

Merit Abrasives has been manufacturing abrasives for the deburring and finishing industries since 1945, and pride themselves on their quality and focus on service. Saint-Gobain owns Merit, and has been recognized as a Global 100 Sustainable Company. Saint-Gobain has also earned ISO 9000 and 14001 certification for quality and environmental management standards.

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