3M 7100284663 Hook Loop Disc 5 in 40 Grit Ceramic

Product Description

The 3M 7100284663 is a 5-inch hook and loop abrasive disc designed for intermediate sanding applications in industrial and trade environments. Built on a J-weight cloth backing, this disc uses ceramic abrasive grain with a coated construction to deliver consistent cut and durability across a range of surface materials. The disc attaches and removes quickly via hook and loop fastening, making pad changes fast during production work. It is rated for a maximum of 12,000 RPM, suiting it to standard random orbital and disc sanders used by HVAC fabricators, sheet metal workers, contractors, and general tradespeople working on metal, wood, or composite surfaces.

This disc is suited for intermediate stock removal and surface preparation tasks where a coarser grit is needed before finishing passes. The 40-grit ceramic abrasive cuts aggressively enough to level welds, remove rust, shape edges, or knock down high spots on metal duct work, structural steel, or framing components. It is part of the 3M 900DZ series, which is built for demanding professional use in fabrication, construction, and maintenance applications. The purple disc color is a visual identifier for the 900DZ series line.

Key Features

• 40-grit ceramic abrasive for aggressive intermediate sanding and stock removal
• J-weight cloth backing provides flexibility and tear resistance under load
• Hook and loop attachment for fast, tool-free disc changes on compatible sanders
• Rated to 12,000 RPM for use with standard random orbital and disc sanders
• Coated abrasive construction for consistent grain exposure throughout disc life
• No vacuum holes — suited for solid backing pads without dust extraction ports

Compatibility

Designed for use with 5-inch hook and loop random orbital or disc sanders equipped with solid backing pads. No vacuum hole pattern, so this disc is not compatible with dust-extraction backing pads that require through-hole alignment.

Installation Notes

Installation is performed by pressing the disc face firmly onto a compatible 5-inch hook and loop backing pad until fully seated. Confirm the sander is powered off and unplugged before mounting or removing the disc. Do not exceed the 12,000 RPM maximum speed rating. Inspect the disc for tears, delamination, or worn abrasive before each use and replace if damaged.