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SKU 7010327315
Legacy SKU 60440262743
UPC 00051141308623
Product Number 302D

3M™ Cloth Belt 302D is an aluminum oxide belt with open coat construction and a flexible J-weight backing that conforms well for sanding contours and complex parts. It is best-suited for light grinding, finishing, deburring and setting the grain on carbon steel and stainless steel, as well as soft metals like aluminum, brass, bronze and copper.

  • Tough aluminum oxide abrasive cuts fast and performs well on most metals
  • Flexible cloth backing provides ideal conformability for blending and finishing contours and complex parts
  • Open coat construction helps evacuate sanding dust from the belt for a more aggressive cut and longer abrasive life, which means greater productivity
  • Suitable for dry metalworking applications
  • Resin bonded belt maximizes abrasive life
  • Designed for use on backstand grinders, file belt tools and benchtop motors
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On it's way to you October 13  


Minimum Order 25 Items
Order Increment 25 Items
  High-Quality Cloth Belt Materials
Product Dimensions
Imperial Metric
Width 3 in 76.2 mm
Length 118 in 2997.2 mm
Shipping Dimensions
Weight 21.37 lb
Length 14 in
Width 14 in
Height 7 in
Color Brown
Grit 80


  1. What is the 3M™ Cloth Belt 302D used for?

    The 3M™ Cloth Belt 302D can be used for grinding, sanding and finishing a variety of metals, wood and composites.

  2. Can you explain what Film-lok technology is?

    Sure! Film-lok technology allows quick and easy attachment or removal of discs from the backing pad. This reduces downtime between application changes and helps provide a consistently flat surface finish.

  3. How many belts come in a case of the 80 J-weight, full-flex cloth belt?

    Each case contains 50 units of this particular cloth belt.

  4. What sizes are available to purchase these cloth belts in?

    For this specific product (the 80 J-weight full-flex) we offer widths ranging from .5 inches to several inches depending on length requirements. Lengths range up to around six feet depending on width selected

  5. : Are there any safety recommendations when using this product?

    A : Yes please make sure to read instructions before using abrasive products. Please use warm soapy water or cleaning solution with scouring pads if abrasives have hardened onto tools prior to turning them off; do not scrape material by hand as it may damage skin underneath gloves.To prevent injury always wear appropriate personal protective equipment (PPE).

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
Built with Added Flexibility

3M™ Cloth Belt 302D features an open coat construction that helps to channel sanding swarf and dust away from the belt and workpiece, resulting in better visibility and belt performance. The abrasive and backing are resin bonded to ensure that the belt runs until the abrasive is completely worn. This belt is ideal for operations that require added flexibility.

Made with Durable, Fast-Cutting Aluminum Oxide

Aluminum oxide mineral is a popular choice among industrial professionals due to its cut-rate, durability, and long life. It can be used on a wide variety of materials in metalworking, including ferrous alloys, and is the most commonly used industrial abrasive. The abrasive particles are adhered to the cloth backing with resin, creating a strong bond that withstands high heat and pressure.

The Benefits of Open-Coat Construction

Loading occurs when swarf or paint dust clogs the surface of the belt and the abrasive points, rendering the belt ineffective. Open coat construction means the abrasive grains are spaced slightly apart so that dust and debris have an outlet rather than loading the abrasive. These attributes make 3M™ Cloth Belt 302D great for use on soft metals like aluminum, brass, bronze, and copper. Additionally, the open coat construction provides a more aggressive cut than a comparable closed coat abrasive of the same grade.

  • Open coat construction helps channel sanding swarf and dust away from the belt and workpiece
  • Resin bonded abrasive and backing ensure the belt runs until the abrasive is completely worn
  • Recommended for operations that require added flexibility
  • Aluminum oxide mineral is durable, fast-cutting, and has a long life
  • Can be used on a wide variety of materials in metalworking, including ferrous alloys
  • Open coat construction provides a more aggressive cut than a comparable closed coat abrasive of the same grade
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