3M 31372 – 120 Grit Cubitron™ II Hookit™ Clean Sand Disc (6 in, 50 Pack)

3M 31372 120+ Grit Cubitron™ II Hookit™ Clean Sand Disc (6 in, 50 Pack) is a high-performance abrasive sanding disc engineered for surface preparation, material removal, and blend-in tasks in automotive collision repair and metalworking applications. Featuring advanced Cubitron™ II ceramic abrasive grain, this clean sand disc delivers fast cutting action with reduced heat buildup and longer life compared to traditional abrasives, making it ideal for weld blending, paint removal, and panel prep work. The Hookit™ hook-and-loop backing system enables quick and secure disc changes on compatible 6-inch backing pads, supporting efficient workflow in professional body shops and refinishing environments. The 120+ grit provides a balance of aggressive cut and surface refinement suitable for general prep and finishing tasks.

Key Features

• Abrasive: Ideal for material removal, surface prep, and blend-in sanding
• Abrasive: Self-sharpening grain for fast, cool cutting and extended life
• Backing: Allows quick disc changes and secure attachment 6 in
• Diameter: Designed for use with standard 6-inch backing pads and sanders
• Design: Reduces heat buildup and glazing during sanding 50
• Pack: Professional quantity for collision repair and metalworking

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.