3M 7100091074 Hookit Blue Abrasive Sheet Roll 321U 400 Grit 2.75 x 13 Yard

The 3M Hookit Blue Abrasive Sheet Roll 321U delivers professional-grade performance for automotive paint preparation, body repair, and coatings removal. This 2.75-inch by 13-yard roll features 400 grit abrasive, ideal for fine sanding applications including blend preparation, primer sanding, and finish work.

Advanced Abrasive Technology:

• Engineered ceramic mineral blended with premium aluminum oxide for balanced cutting performance and extended life
• Anti-loading coating prevents dust buildup between abrasive grains for consistent cutting action
• Upgraded resin bonding system ensures enhanced durability throughout the sheet's life
• Multi-hole pattern specially designed for superior dust extraction and reduced loading

Convenient Hookit System:

• Hook-and-loop backing allows quick attachment, removal, and repositioning for maximum sheet life
• Brushed nylon loop backing compatible with 3M Hookit sanding blocks and hand files
• Perforated design allows easy sizing to desired lengths without waste or fold-over
• Ideal for workspaces where adhesive-backed abrasives may be contaminated by dust or debris

Part of the 3M Blue Abrasives family, this sheet roll is engineered for best-in-class cut, life, and efficiency across a wide range of automotive refinishing tasks. The 400 grit is perfect for achieving smooth surfaces before final finishing steps. Made in USA.