3M 7000118259 Paper Sheet 346U 9x11 Inch 40 Grit D-Weight Aluminum Oxide Sandpaper

The 3M Paper Sheet 346U is constructed of aluminum oxide abrasive 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. This makes it an excellent choice for blending the joints of connecting pieces in wood- and metal-working.

Key Features:

• 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
• Standard 9 x 11 inch size for versatile applications
• 40 grit for coarse material removal

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 open-coat construction minimizes the buildup of dust on the surface of the paper, which would otherwise load the abrasive points. Sold in packs of 50 sheets per inner, 250 sheets per case. For industrial and occupational use only.