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SKU 7000118230
Legacy SKU 60060006206
UPC 00051144021369
Part Number 02136
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 October 26  


Minimum Order 1,000 Items
Order Increment 1,000 Items
  Immense Durability
  Reduces Abrasive Costs
  Lowest Price Per Item
Product Dimensions
Imperial Metric
Width 17-1/2 in 444.5 mm
Length 2-3/4 in 69.9 cm
Shipping Dimensions
Weight 35.45 lb
Length 18.3 in
Width 17.3 in
Height 7.4 in
Color Gold
Grit P60


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

    Each sheet is 2-3/4 in x 17-1/2 in.

  2. Are these sold individually or in bulk?

    These are sold in a case of 1000, with an inner packing containing a quantity of 100 sheets.

  3. Is it possible to get different weights for this paper sheet?

    Yes, we offer other weight options such as E-weight and F-weight. We would be happy to discuss those options with you further.

  4. What type of sanding applications can this product be used for?

    This product is ideal for use on hardwoods, MDF (medium-density fiberboard), and carbon steel. They are typically used during the rough sanding stages before finishing surfaces up nicely before staining etcetera.

  5. . How long does each Paper Sheet last approximately while using them regularly?

    . The overall lifespan will depend on various factors linked to usage patterns and surface materials they are being applied to; unfortunately, there isn't one straight forward answer relating to how long they last when frequently used since that depends highly upon individual user techniques when applying pressure and their technique.

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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