3M 7000000556 Quick-change Disc 3 in 100 Grit Ceramic

Product Description

The 3M 7000000556 is a ceramic-abrasive quick-change disc designed for use with Roloc TR Type R attachment systems. Part of the 3M 777F series, this 3-inch disc runs at a maximum of 20,000 RPM and cuts at 100 grit (Fine grade), making it well-suited for metal finishing, weld blending, and surface preparation tasks where consistent stock removal and finish quality matter. The ceramic abrasive grain is bonded to an orange polyester cloth backing rated YF weight, delivering durability and flexibility across flat and contoured work surfaces. Installation and removal are tool-free via the twist-on Type R button system.

This disc is used in metal fabrication, automotive body work, HVAC sheet metal preparation, and general industrial finishing applications. It fits grinders and sanders equipped with a Roloc TR (Type R) mandrel. The 3-inch diameter suits smaller angle grinders and right-angle die grinders commonly used in tight-access areas or detail finishing work. The blue button and orange disc color are standard 3M series identifiers for this product line.

Key Features

• 3-inch disc diameter with Roloc TR (Type R) quick-change attachment — no tools required for disc changes
• 100 grit ceramic abrasive grain for fast cutting and consistent finish at Fine grade
• YF-weight polyester cloth backing provides flexibility and durability on both flat and contoured surfaces
• Rated to 20,000 RPM maximum for compatibility with standard die grinders and angle grinders
• 777F series construction with orange disc body and blue button for easy series identification

Compatibility

Designed for use with Roloc TR (Type R) mandrels and compatible quick-change disc holders on standard die grinders and right-angle grinders that accept 3-inch quick-change abrasive discs.

Installation Notes

Installation and removal are performed by hand — align the disc button with the mandrel, press, and twist to lock; twist in reverse to release. Always confirm the grinder or die grinder is powered off and disconnected before changing discs. Verify that the tool's rated free speed does not exceed 20,000 RPM before mounting this disc. Operators should wear appropriate PPE including eye protection and gloves when performing abrasive grinding operations.