3M 7100076931 Cubitron Ii Roloc 947A Disc 4 in 80 Grit

Product Description

The 3M 7100076931 is a Cubitron II Roloc 947A durable edge abrasive disc designed for fast, consistent material removal on metal and fabricated surfaces. Built on a heavy X-weight poly-cotton backing, this 4-inch disc runs at up to 12,000 RPM and cuts at 80 grit. The Roloc quick-change attachment system allows fast, tool-free disc changes. 3M Precision-Shaped Grain delivers a sharp, cool cutting action that stays consistent across the disc life. The open grain spacing reduces loading by allowing swarf and debris to escape, extending usable disc life on heavy grinding and edge-finishing tasks.

This disc is suited for edge work on fabricated metal parts, structural steel, and welded assemblies where disc integrity at the edge matters. The X-weight poly-cotton backing resists tattering and fraying under lateral pressure, making it a practical choice for deburring, blending, and surface prep on edges and corners. Metal fabricators, pipefitters, and industrial maintenance technicians are the typical users. It fits any angle grinder or die grinder configured with a Roloc-compatible arbor attachment.

Key Features

• Precision-Shaped Grain provides sharp, cool, consistent cutting at 80 grit
• Open grain spacing channels debris away from the cutting surface to reduce loading
• Heavy X-weight poly-cotton backing resists edge tearing and fraying under lateral load
• Roloc attachment system allows quick disc changes without additional tools
• Rated to 12,000 RPM for use with standard angle and die grinders
• 4-inch diameter suits standard Roloc-compatible grinding and finishing tools

Compatibility

Designed for use with angle grinders and die grinders fitted with a Roloc-compatible quick-change arbor attachment. Verify tool RPM rating meets or exceeds 12,000 RPM before mounting.

Installation Notes

A licensed or qualified metal fabricator or maintenance technician should mount and operate this disc. Disconnect and de-energize the grinder before attaching or removing the disc. Confirm the tool spindle speed does not exceed the 12,000 RPM disc rating, and always install the appropriate guard before operation in accordance with ANSI B11 and tool manufacturer guidelines.

Technical Specifications

• Disc Diameter: 4 inches
• Grit: 80
• Maximum Speed: 12,000 RPM
• Backing Material: Heavy X-weight poly-cotton
• Attachment Type: Roloc quick-change
• Package Weight: 4.05 pounds
• Package Length: 13.59 inches
• Package Width: 11.88 inches
• Package Height: 6.2 inches
• UPC: 051141542626

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100076931