3M 31364 – 180 Grit Cubitron™ II Hookit™ Clean Sand Disc (3 in, 50 Pack)

3M 31364 180+ Grit Cubitron™ II Hookit™ Clean Sand Disc (3 in, 50 Pack) is a high-performance abrasive sanding disc engineered for surface preparation and material refinement in automotive collision repair and metalworking applications. Featuring advanced Cubitron™ II ceramic abrasive grain, this clean sand disc provides fast, controlled cutting action and extended life compared to conventional abrasive discs, while reducing heat buildup and glazing during sanding. The 180+ grit offers a balanced blend of aggression and finish quality for surface prep and smoothing tasks. The Hookit™ hook-and-loop backing allows quick disc changes and secure attachment to compatible 3-inch backing pads and sanders, making this an ideal choice for professional body shops, metal fabricators, and refinishing technicians working in tight areas or detailed spots.

Key Features

• Abrasive: Ideal for surface preparation, material removal, and refinement
• Abrasive: Self-sharpening grain for fast, cool cutting and extended life
• Backing: Enables quick disc changes and secure attachment 3 in
• Diameter: Designed for use with standard 3-inch backing pads and sanders
• Design: Reduces heat buildup and glazing during sanding 50
• Pack: Professional supply for frequent use

Frequently Asked Questions

What makes Cubitron II different from regular sandpaper?

Cubitron II uses precision-shaped ceramic grain that self-sharpens as it wears, cutting up to 2x faster and lasting up to 2x longer than conventional abrasives.

How long do Cubitron II sheets last?

Cubitron II typically lasts 2x or more compared to standard aluminum oxide abrasives because the ceramic grain self-sharpens rather than dulling.

How much material is on the roll?

Each roll provides 8.75 yards of 2.75-inch wide abrasive.