3M 7000120367 Quick-change Disc 120 Grit Diamond 1 Inch

Product Description

The 3M 7000120367 is a coated abrasive quick-change disc designed for use with Roloc TR (Type III) attaching systems. Built around a diamond abrasive material at 120 grit (Grade M125), this 1-inch diameter disc delivers consistent material removal on hard and demanding surfaces. The polyester backing rated at J-weight provides flexibility for contouring work while maintaining durability under load. A maximum rated speed of 30,000 RPM makes it suitable for high-speed rotary tools common in precision grinding and finishing applications. Installers and technicians working on hard materials benefit from the diamond abrasive composition, which outlasts conventional aluminum oxide or ceramic grains on the hardest substrates.

This disc is suited for precision surface finishing, deburring, and light grinding tasks on hard materials including glass, carbide, ceramics, and hardened metals. The 1-inch form factor targets tight clearances and small work areas where larger discs cannot reach. It is commonly used in metalworking, HVAC component fabrication, and maintenance environments where a quick-change system reduces downtime between disc swaps. The Roloc TR button attachment allows tool-free disc changes on compatible TR-series mandrels.

Key Features

• Diamond abrasive material for cutting performance on hard and exotic substrates
• 120 grit (Grade M125) for medium finishing and controlled material removal
• Roloc TR (Type III) quick-change attachment — tool-free disc swaps
• Flexible J-weight polyester backing conforms to contoured surfaces
• Rated to 30,000 RPM for compatibility with high-speed rotary tools
• 1-inch diameter designed for tight access and precision work areas

Compatibility

Designed for use with Roloc TR (Type III) mandrels and quick-change tool systems that accept TR-style button attachments. Verify mandrel compatibility with the TR attaching system before installation.

Installation Notes

Installation and disc changes should be performed with the rotary tool powered off and fully stopped. Confirm the mandrel is rated for the TR (Type III) attaching system before mounting. Do not exceed the 30,000 RPM maximum rated speed marked on the disc. Always wear appropriate eye protection and follow applicable ANSI B7.1 safety standards for abrasive wheel use.