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SKU 7000120220
Legacy SKU 60510026382
UPC 00051144021154
Part Number 02115
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 500 Sheets
Order Increment 500 Sheets
  Immense Durability
  Reduces Abrasive Costs
  Lowest Price Per Item
Product Dimensions
Imperial Metric
Width 11 in 279.4 mm
Length 9 in 228.6 cm
Shipping Dimensions
Weight 20.26 lb
Length 15.25 in
Width 9.5 in
Height 11.75 in
Color Gold
Grit P60


  1. What kind of material is the 3M™ Paper Sheet 346U made from?

    The 3M™ Paper Sheet is made with aluminum oxide mineral, which provides an excellent finish on woods and paints.

  2. What are the dimensions of each sheet in this case?

    Each 3M™ Paper Sheet in this case measures at 9 inches by 11 inches, making it a standard dimension used across many industries for sanding tasks.

  3. How many sheets come in each case?

    There are a total of 500 units included in one single case. You will find that they come sorted into inner packages consisting of fifty sheets each to facilitate handling.

  4. Is there anything special I need to use these paper sheets with or can they work with any power tool.

    It is important to match these versatile aluminum oxide sandpaper sheets up properly when using them on your powered abrasive tools. They're compatible with disc sanders and right angle grinders after all. Proper compatibility ensures you not only obtain optimal performance, but you protect yourself against unwarranted equipment failures too!

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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