3M 7010365077 Quick-change Disc 800 Grit Diamond 3in

Product Description

The 3M 7010365077 is a quick-change abrasive disc designed for precision surface finishing and material removal on hard substrates. It uses a diamond abrasive material at 800 grit, placing it firmly in the fine-finishing range — suitable for smoothing, light stock removal, and surface preparation on hard materials such as glass, ceramics, carbide, and hardened steel. The disc mounts via a Type R (Roloc TR) button attachment system, allowing fast one-handed swaps on compatible right-angle grinders and die grinders. The polyester backing provides flexibility for contouring work. Maximum rated speed is 20,000 RPM.

This disc is used in industrial, maintenance, and trade applications where conventional aluminum oxide or silicon carbide abrasives are insufficient. Typical scenarios include tool and die work, carbide tooling touch-up, ceramic and glass grinding, and precision deburring. The 3-inch diameter suits die grinders and small right-angle tools commonly used in HVAC fabrication, plumbing rough-in, and electrical enclosure prep. The fine 800 grit makes it a finishing step rather than a bulk-removal tool.

Key Features

• Diamond abrasive at 800 grit for fine finishing on hard and brittle materials
• Type R (Roloc TR) quick-change attachment — no wrenches required for disc swaps
• Flexible polyester (J-weight) backing conforms to curved or irregular surfaces
• 3-inch disc diameter fits standard die grinders and small right-angle grinders
• Rated to 20,000 RPM — compatible with high-speed pneumatic and electric grinders
• Series 6234J construction with brown disc color and white button

Compatibility

Designed for use with Type R (Roloc TR) quick-change mandrels on die grinders and right-angle grinders accepting 3-inch quick-change discs rated to 20,000 RPM or higher.

Installation Notes

Installation requires a compatible Type R mandrel mounted in the grinder chuck. Confirm the grinder's no-load RPM rating meets or exceeds the disc's 20,000 RPM maximum before use. Always inspect the disc for damage before mounting, and ensure the button is fully seated and locked before operating. Eye protection and appropriate hand protection are required during grinding operations.