3M 7100034847 Quick-change Disc 2 in Aluminum Oxide Fine

Product Description

The 3M 7100034847 is a 2-inch quick-change abrasive disc designed for use with Roloc TR (Type III) attaching systems. Built with a non-woven aluminum oxide construction in a fine grade, this disc is suited for light deburring, surface conditioning, blending, and finishing on metal and other hard surfaces. It runs at a maximum of 25,000 RPM and mounts in seconds without tools, making it a practical choice for HVAC fabricators, pipefitters, and sheet metal technicians who need consistent surface prep without swapping out entire tool assemblies.

This disc fits applications where controlled material removal and surface blending are required without aggressive stock removal. Common install and fabrication scenarios include cleaning weld seams, prepping metal surfaces before brazing or bonding, and light rust or scale removal on HVAC components, ductwork, and pipe connections. The non-woven construction conforms to irregular surfaces and reduces the risk of gouging on thinner-gauge materials.

Key Features

• 2-inch disc diameter sized for compact angle grinders and Roloc-style tools
• Aluminum oxide abrasive material for durable performance on ferrous and non-ferrous metals
• Non-woven construction conforms to irregular and contoured surfaces
• Fine grade for surface blending and finishing rather than aggressive stock removal
• Maximum operating speed of 25,000 RPM
• TR (Type III) attaching system for tool-free quick-change mounting

Compatibility

Compatible with Roloc TR (Type III) quick-change disc holders and tools. Designed for use with power tools and grinders that accept the TR attaching system. Verify your tool mandrel type before ordering.

Installation Notes

Mounting and removal require only a press-and-turn action on a compatible TR mandrel — no wrenches or adapters needed. Always confirm the tool RPM rating meets or exceeds the disc maximum of 25,000 RPM before use. Inspect the disc for tears or damage before each use and do not use damaged discs. Follow ANSI B7.1 and applicable shop safety standards when operating abrasive tools.