3M 7000046149 Quick-change Disc 3 in Aluminum Oxide Fine

Product Description

The 3M 7000046149 is a quick-change abrasive disc designed for surface conditioning, blending, and finishing on metal and other substrates. Built with aluminum oxide non-woven construction, the disc delivers consistent cut and finish without loading or glazing. It attaches via a Type R (Roloc TR) twist-lock system for fast, tool-free disc changes on compatible right-angle grinders and die grinders. Rated at 18,000 RPM, the disc measures 3 inches in diameter and is graded Fine, making it well suited for light deburring, surface prep, and pre-weld or pre-coat blending. The disc is identified by its green color and black button.

This disc is used in metal fabrication, welding shops, and maintenance environments where fast abrasive changes and consistent surface finish are priorities. The non-woven aluminum oxide construction conforms to contours and irregular surfaces better than coated abrasive discs, making it effective on pipe, sheet metal, structural steel, and weldments. It is installed by licensed tradespeople, fabricators, and industrial maintenance technicians requiring a fine-finish pass before coating, painting, or inspection.

Key Features

• Type R (Roloc TR) twist-lock attachment for rapid disc changes without tools
• Aluminum oxide non-woven abrasive construction resists loading and glazing
• Fine grade suited for surface blending, light deburring, and pre-coat prep
• 18,000 RPM maximum speed rating for use on standard die grinders and right-angle grinders
• 3-inch diameter fits common quick-change grinder pads and holders
• Green disc color with black button for easy grade identification in the shop

Compatibility

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

Installation Notes

Installation requires a compatible Type R quick-change holder mounted to a die grinder or right-angle grinder. Verify the tool RPM rating meets or exceeds the disc maximum before use, and do not exceed 18,000 RPM. Inspect the disc for damage before each use and replace if torn, frayed, or delaminated. Always wear appropriate PPE including eye protection and gloves when operating rotary abrasives.