3M™ Paper Sheet 346U, 40 D-weight, 3 in x 9 in

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.
Special Price $0.63 Regular Price $0.74
UPC 00638060685389
3M ID 7010512930
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Aluminum oxide is a very hard mineral that maintains sharp points on the grains much longer than natural abrasives such as emery or garnet. The abrasive grains are adhered to the sandpaper with some space between them, known as open-coat construction, to minimize the buildup of dust on the surface of the paper, which would otherwise load the abrasive points. Loading often results from sanding soft materials and can clog the abrasive, shortening the usable life of the sandpaper sheet.


  • 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
More Information
3M ID 7010512930
Keywords paper sheet, 346U
Global Product Hierarchy Abrasives > Abrasive Sheets & Rolls > Sandpaper Sheets & Rolls
Abrasive Material Aluminum Oxide
Backing Material Paper
Backing Weight D Weight
Color Family Yellow
Grit 40
Product Color Gold
Product Number 346U
Product Type simple
Quantity 0
Trademark 1 3M™
Country of Origin Cameroon
SAP Shelf Life In Days 3650
Base - Billing Unit SH
Base - Metric Gross Weight 0.001 KG
Base - Item Quantity 1
Base - Unit SH
Unit of Use - Billing Unit SH
Unit of Use - Customary Cubic Dimension 1.8570745802908928 ci
Unit of Use - Customary Gross Weight 0.002204622621848776 lbs
Unit of Use - Customary Net Weight 0.002204622621848776 lbs
Unit of Use - Metric Cubic Dimension 30.432 CCM
Unit of Use - Metric Net Weight 0.001 KG
Unit of Use - Item Quantity 1
Unit of Use - Unit SH
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