Mirka 8292557021 Backup Pad 5.3" M4 Grip Hard

The Mirka 8292557021 is a 5.3-inch hard backup pad designed for use with Mirka's pneumatic and electric sanders. This professional-grade backing pad features the M4 thread attachment system and a hook-and-loop (grip) interface for quick and secure abrasive disc changes.

Key Features:

• 5.3-inch (135mm) diameter for optimal sanding coverage
• Hard density pad provides firm backing for aggressive material removal and flat surface sanding
• M4 threaded attachment fits compatible Mirka sander models
• Grip (hook-and-loop) surface ensures secure abrasive disc attachment
• Durable construction for extended service life in demanding applications
• Precision-balanced design minimizes vibration during operation

This backup pad is ideal for automotive refinishing, woodworking, composites, and industrial finishing applications where a firm backing surface is required. The hard density makes it well-suited for leveling, paint preparation, and working with coarser grit abrasives.