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SKU 7010325647
Legacy SKU 60060006180
UPC 00051144021758
Product Number 346U

3M™ Paper Sheet 346U is constructed of aluminum oxide and comes in a range of grades and sizes to accommodate many different projects. The paper backing is durable for coarse sanding, yet flexible enough to be used on curved surfaces. Its cut-rate and durability make this an excellent choice for blending the joints of connecting pieces in wood- and metal-working.

  • Tough aluminum oxide abrasive cuts fast and performs well on many surfaces
  • Load resistant open-coat feature enables longer use before replacement
  • Strong, D-weight paper backing supports aggressive sanding
  • Sheets are conformable to various workpieces and usable by either hand or machine
  • Sheets come in a number of sizes to accommodate various applications
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On it's way to you December 7   


Minimum Order 2,000 Sheets
Order Increment 2,000 Sheets
  Immense Durability
  Reduces Abrasive Costs
  Lowest Price Per Item
Product Dimensions
Imperial Metric
Width 3.667 in 93.142 mm
Length 9 in 228.6 mm
Shipping Dimensions
Weight 42.8 lb
Length 20.8 in
Width 11.8 in
Height 10.7 in
Color Gold
Grit 80


  1. What is the size of 3M™ Paper Sheet 346U?

    The size of the paper sheet is 3-2/3 in x 9 in.

  2. Is this paper good for woodworking applications?

    Yes, this paper is ideal for woodworking.

  3. How many sheets are there per case?

    There are a total of 2000 sheets per case with an inner pack containing 200 individual sheets.

  4. Can this paper be used on metal surfaces as well?

    This abrasive sheet can be effectively used on both wood and metal surfaces without causing damage or scratches.

  5. :Is this product backed by a warranty or guarantee?

    :At 3M, we stand behind quality products and offer warranties based upon the specific product and its intended use, however you may want to check our website or contact customer service to know more about specific warranties offered for Paper Sheet346U

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.
Product Description

Product Description

Aluminum oxide is a highly durable mineral that maintains sharp points on the grains for a longer period compared to natural abrasives like emery or garnet. The sandpaper features an open-coat construction where the abrasive grains are attached with some space between them. This design helps minimize the accumulation of dust on the paper's surface, preventing the abrasive points from getting clogged. The issue of loading, which often occurs when sanding soft materials, is effectively addressed by this open-coat construction. By reducing the clogging of the abrasive, the usable life of the sandpaper sheet is extended.

Brochures, Catalogs & Data Sheets
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