3M Paper Sheet 346U, 40 D-weight, 9 in x 11 in, 50/Pac, 2Case of 50

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

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.

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.

Trusted 3M Paper Sheet

The 3M Paper Sheet 346U offers reliable quality from a well-known brand. This model features a strong D-weight paper backing, which supports aggressive sanding tasks. The brand's reputation ensures consistent performance for various projects.

Designed for durability, the 346U model is built to last through tough sanding jobs. Its construction makes it a dependable choice for both professionals and hobbyists who need a trusted abrasive sheet.

Precise 40 D-weight Backing

The 40 D-weight paper backing provides a balance of strength and flexibility. This backing supports aggressive sanding while conforming to different surfaces, making it suitable for detailed work on curved or flat pieces.

Because of this backing, the sheets hold up well during use, reducing the need for frequent replacements. This feature helps maintain efficiency and quality in sanding applications.

Optimal 9 Inch Size

Each sheet measures 9 inches by 11 inches, a size that fits comfortably in hand or machine sanding tools. This dimension allows for easy handling and precise control during sanding tasks.

The 9 in x 11 in size is versatile enough for various applications, from woodworking to metalworking. It offers enough surface area to cover larger spots while still being manageable for detailed work.

Convenient 50 Sheets Pack

Sheets come in packs of 50, providing a practical quantity for ongoing projects. This pack size ensures you have enough sheets on hand without excess waste or storage issues.

With 50 sheets per pack, users can maintain a steady workflow, replacing sheets as needed without interruption. This format suits both small workshops and larger operations.

Durable 250 Sheets Case

The full case contains 250 sheets, combining five packs for extended use. This bulk packaging is ideal for professionals who require a large supply of sanding sheets.

Having 250 sheets in a case reduces the frequency of reordering and helps keep projects moving smoothly. It’s a cost-effective option for high-volume sanding needs.