3M Roloc Backup Pad 50mm ZR-AC with 6mm Shaft 7000077929

When grinding or surface conditioning with small die grinders, a rigid disc holder can cause vibration, uneven contact, and premature abrasive wear. This 3M Roloc backup pad solves that by providing a resilient, medium-density rubber face that supports the abrasive disc and conforms to the workpiece, improving finish quality and disc life.

Who is it for

Professionals in metal fabrication, automotive repair, and maintenance who use 50 mm Roloc discs on die grinders or drills with a 6 mm chuck. Ideal for blending, deburring, and surface preparation in tight areas.

Main features

• Accepts all 3M Roloc TR discs with external thread, including Cubitron II and Scotch-Brite types.
• Medium-density rubber pad provides cushioning for consistent contact and reduced vibration.
• Straight 6 mm shaft fits standard die grinder collets and drill chucks.
• Rated for speeds up to 25,000 RPM, matching high-speed pneumatic tools.
• Black rubber construction resists wear and maintains flexibility.

Specifications

• Pad diameter: 50 mm
• Shaft diameter: 6 mm
• Maximum speed: 25,000 RPM
• Pad material: Rubber
• Pad density: Medium
• Attachment system: 3M Roloc TR
• Colour: Black

Tips

Always check that the disc is fully seated on the Roloc thread before starting the tool. Use light, even pressure to allow the pad to flex and follow the surface. Replace the pad if the rubber becomes cracked or the thread is damaged.