3M 7000045619 Quick-change Disc 1 in 50 Grit Ceramic Roloc Tr

Product Description

The 3M 7000045619 is a ceramic-abrasive quick-change disc engineered for aggressive material removal on metal and other hard surfaces. Part of the 777F Series, it uses a Type R (Roloc TR) attachment system for fast, tool-free disc changes on compatible right-angle grinders and die grinders. The 50-grit coarse ceramic grain cuts efficiently and fractures during use to expose fresh cutting edges, extending disc life under heavy load. A polyester cloth backing rated YF weight provides rigidity and durability. Rated to 30,000 RPM, this disc is suited for grinding, blending, and deburring applications where speed and consistent cut rate matter.

This disc is sized at 1 inch in diameter and is intended for use in tight-clearance and precision grinding applications where a standard 2-inch or larger disc cannot reach. The orange ceramic coating and green button designate it as part of the 777F Series. Typical users include metal fabricators, machinists, welders, and maintenance technicians working on weld seams, burrs, or surface prep in confined areas. The disc ships individually but carries a minimum order quantity of 50 units, consistent with shop or production-level purchasing.

Key Features

• Ceramic abrasive grain fractures during use to maintain a sharp cutting edge throughout disc life
• Type R (Roloc TR) attachment system enables tool-free quick-change mounting
• 50-grit coarse grade suited for aggressive stock removal, deburring, and weld blending
• Polyester cloth YF-weight backing provides rigidity for consistent contact pressure
• 30,000 RPM maximum speed rating for use with high-speed die grinders and right-angle grinders
• 1-inch diameter designed for confined spaces and precision access grinding

Compatibility

Designed for use with grinders equipped with a Type R (Roloc TR) quick-change attachment interface. Verify that the host tool does not exceed the 30,000 RPM maximum disc speed rating before mounting.

Installation Notes

Installation and disc changes must be performed with the grinder powered off and disconnected from its power source. Thread the Type R button into the compatible mandrel by pressing and rotating until fully seated. Confirm the disc is secure before restarting the tool. Always wear appropriate PPE including eye protection and gloves when operating abrasive discs, in accordance with ANSI B11 and applicable OSHA standards.