3M 31463 – 320 Grit Cubitron™ II Hookit™ Clean Sand Disc (3 in, 50 Pack)

3M 31463 320+ Grit Cubitron™ II Hookit™ Clean Sand Disc (3 in, 50 Pack) is a high-performance abrasive sanding disc engineered for fine surface preparation and finish sanding in automotive collision repair and refinishing applications. Featuring advanced Cubitron™ II ceramic abrasive grain, this disc delivers precise, consistent scratch patterns while helping reduce heat buildup and glazing during sanding — ideal for refining surfaces prior to polishing or coating application, especially in tight or detailed areas.

Designed with Hookit™ hook-and-loop backing, the disc allows for quick changes and secure attachment to compatible 3-inch backing pads and sanders, supporting efficient workflow in professional body shops and refinishing environments. The 320+ grit provides a balance of surface refinement and controlled sanding for smooth results.

Key Features

• 320+ Grit Ultra-Fine Abrasive: Ideal for surface refinement and finish sanding
• Cubitron™ II Ceramic Abrasive: Self-sharpening grain for consistent performance and extended life
• Hookit™ Hook-and-Loop Backing: Enables quick disc changes and secure attachment
• 3 in Diameter: Designed for use with standard 3-inch backing pads and sanders
• Clean Sand Disc Design: Reduces heat buildup and glazing during fine sanding
• 50 Discs Per Pack: Professional quantity for collision repair and refinishing