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  • Norton 3X Extra Large Corner Area Abrasive Sponge, 9" Length x 2-3/4" Width x 2-3/4" Thickness, Grit Medium (Pack of 1)
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Norton 3X Extra Large Corner Area Abrasive Sponge, 9" Length x 2-3/4" Width x 2-3/4" Thickness, Grit Medium (Pack of 1)

2 customer reviews

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Specifications for this item
Brand Name Norton Abrasives - St. Gobain
Part Number 07660703861
Grit Type Medium
UPC 076607038616
EAN 0076607038616
Number of Items 1
Overall Length 9  inches
Overall Width 2-3/4  inches
Thickness 2-3/4  inches
UNSPSC Code 31191500

The Norton 3X Extra Large Corner abrasive sponge reaches insi... Read full product description


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Product Features

  • Abrasive-coated sponge comes to a point to sand inside corners
  • Firm foam sponge resists tearing for extended life
  • Medium grit abrasive is recommended for light surface sanding and moderate material removal
  • Sponge retains grit up to five times longer than standard sandpaper
  • Surface rinses free of dust and chips for repeated use

Product Details

  • Product Dimensions: 2.8 x 2.8 x 9.5 inches
  • Shipping Weight: 2.4 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0067NHZ5W
  • Average Customer Review: 3.5 out of 5 stars  See all reviews (2 customer reviews)
  • Amazon Best Sellers Rank: #225,640 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

The Norton 3X Extra Large Corner abrasive sponge reaches inside corners to sand wood, metal, paint, plastic, ceramics, and drywall. The two faces of this firm sponge are coated with a medium grit abrasive for light surface sanding or moderate material removal. The tear-resistant foam sponge retains grit up to five times longer than standard sandpaper. After sanding, the sponge surface rinses free of dust and chips and is ready for reuse. The groove in the sponge base provides a place to grip when hand sanding or accepts a Norton V-groove handle (not included) to keep hands clear of the workpiece.

Coated abrasives have individual abrasive grains spaced at a predetermined distance from one another. They are used for a variety of applications — from shaping a part to fine finishing, depending on grit size. Low grit numbers such as 40 are coarse and are used for removing excess material and shaping a part. High grit numbers such as 400 are rated as fine and help create a smooth surface finish. Closed coat abrasives are 100 percent covered with abrasive grains, which extends the abrasive's life, maximizes material removal, and achieves finer finishes on metals and hard materials than an open coat. Closed coats are only recommended for use with non-clogging materials. For open coat abrasives, 50 to 75 percent of the surface is evenly covered, which provides a rougher finish because the abrasive grains are spaced farther apart than on a fully coated product. The gritless spaces promote flexibility and resist clogging when abrading difficult-to-sand materials. The flexibility or rigidity of the abrasive product is also affected by the choice of backing material (either paper, cloth, or fiber). Paper backing, the most flexible backing option, contours to the workpiece and delivers a more consistent finish than fiber or cloth backings. Paper backings are categorized by weight from lightest to heaviest (A- to F-weight respectively). Cloth backings are slightly more rigid, durable, and tear resistant than paper backing, but can still withstand repeated flexing. Cloth backing is categorized by weight from lightest to heaviest (J-, X-, Y-, and H-weight respectively). Fiber backing is the strongest and most rigid backing option, and is recommended for aggressive material removal.

Norton Abrasives manufactures sanding, grinding, and polishing abrasives. The company, founded in 1885, meets International Organization for Standardization (ISO) standards 9000 and 14001 for quality and environmental management.


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Most Helpful Customer Reviews

By Anonymous on May 6, 2014
Verified Purchase
I have used the other corner sander and it did the job I expected. I bought this one the use during 1st & 2nd finish to fit into the corner seam. If it's as good as the 4" corner block I'll let you know near the end of the LR remodeling.
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Verified Purchase
Makes cleaning up drywall corners very easy, if sanding can ever be really easy. I use a 4 inch flat spackling knife to remove any prominent ridges or high spots, then sand with the foam block. This can be rinsed/cleaned periodically with water. I use this one and the Norton 01715 Medium Corner Drywall Sanding Sponge (about 2 inches shorter) for non-professional, DIY at home use.

A bit pricey so no 5 stars.
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