3M 7100077045 Cubitron Ii Roloc Disc 4 Inch 40 Grit

Product Description

The 3M 7100077045 is a 4-inch Cubitron II Roloc abrasive disc designed for aggressive material removal on edges and flat surfaces. It uses 3M Precision-Shaped Grain, a ceramic abrasive technology that fractures along consistent planes to maintain sharp cutting edges throughout the disc life. The poly-cotton X-weight backing resists fraying and tearing, making this disc a reliable choice for edge work where standard discs tend to break down quickly. At 40 grit, it is suited for rapid stock removal and surface preparation. The Roloc threaded attachment system allows for fast disc changes without tools. Licensed tradespeople and fabricators working on metal surfaces are the primary installers.

This disc is designed for use with Roloc-compatible angle grinders and disc pads rated for 4-inch accessories. At a maximum speed of 12000 RPM, it is appropriate for high-speed grinder applications in fabrication shops, field metalwork, and maintenance operations. Typical applications include weld blending, edge chamfering, deburring, and surface conditioning on ferrous and non-ferrous metals. The evenly spaced grain pattern helps prevent loading when working on softer metals or coated surfaces.

Key Features

• 3M Precision-Shaped Grain maintains consistent cut rate and reduces heat buildup at the workpiece
• Evenly spaced grain layout allows debris to escape, resisting loading during use
• Heavy X-weight poly-cotton backing withstands edge contact without fraying or tattering
• Roloc threaded hub attachment enables fast, tool-free disc changes
• 40 grit rating delivers aggressive stock removal for weld blending and surface prep
• Rated to 12000 RPM for compatibility with standard high-speed angle grinders

Compatibility

Designed for use with Roloc-compatible 4-inch disc pads and angle grinders rated at or above 12000 RPM.

Installation Notes

Installation is performed by tradespeople operating angle grinders in fabrication or field metalwork environments. Ensure the grinder is powered off and unplugged before attaching or removing the disc. Thread the Roloc hub onto a compatible backing pad until fully seated before operating. Do not exceed the rated speed of 12000 RPM, and always wear appropriate eye and face protection during operation.

Technical Specifications

• Disc Diameter: 4 inches
• Grit: 40
• Maximum Speed: 12000 RPM
• Attachment Type: Roloc Threaded Hub
• Backing Material: Poly-Cotton X-Weight
• Abrasive Type: Precision-Shaped Ceramic Grain
• Package Weight: 4.85 pounds
• Package Length: 13.59 inches
• Package Width: 11.88 inches
• Package Height: 6.2 inches
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100077045