3M 7100055948 Cubitrona Ii 967A Flap Disc 7 in 80 Grit

Product Description

The 3M 7100055948 is the Cubitrona II 967A flap disc, a 7-inch, 80-grit abrasive disc engineered for medium-pressure grinding and surface preparation on flat and contoured workpieces. Powered by 3M Precision-Shaped Grain, the disc delivers a fast cut rate and extended service life compared to conventional abrasive grain. The poly-cotton backing provides controlled, even wear under medium unit pressure. Individual flaps break down progressively during use, continuously exposing fresh mineral and maintaining a consistent cut rate from first use to last. Fabricators and metalworking professionals install this disc on right-angle grinders for weld leveling, light deburring, and pre-paint surface prep.

This disc is suited for medium-duty applications on mild steel and stainless steel. Common use cases include weld removal, weld leveling, light deburring, and surface preparation prior to painting or coating. Its geometry and grain structure make it particularly effective on contoured surfaces where controlled stock removal and finish quality matter. The 80-grit designation positions it for material removal tasks that still require a reasonably smooth surface profile. Stainless steel fabricators benefit from its gouge-resistant cutting action, which helps preserve workpiece integrity and reduce rework.

Key Features

• 3M Precision-Shaped Grain delivers fast cutting action and extended disc life
• Poly-cotton backing provides controlled, even wear under medium unit pressure
• Progressive flap breakdown exposes fresh mineral continuously for a consistent cut rate
• Less gouging than fiber discs and bonded wheels, reducing rework on finished surfaces
• Effective on both flat and contoured surfaces in weld leveling and deburring applications
• Suitable for mild steel and stainless steel fabrication

Compatibility

Designed for use on right-angle grinders accepting 7-inch flap discs; suitable for medium-pressure grinding, weld leveling, light deburring, and surface preparation on mild steel and stainless steel.

Installation Notes

This disc is installed and serviced by metalworking fabricators and grinding professionals. Always ensure the grinder is powered off and unplugged before mounting or removing a flap disc. Verify that the grinder's rated RPM meets or exceeds the disc's maximum RPM rating before operation. Inspect the disc for damage before each use and never use a disc that shows signs of delamination or cracking.

Technical Specifications

• Disc Diameter: 7 inches
• Grit: 80
• Disc Type: Right Angle Flap Disc
• Backing Material: Poly-Cotton
• Abrasive Grain: 3M Precision-Shaped Grain
• Package Dimensions: 7.7 x 7.7 x 6.2 inches
• Weight: 0.68 pounds
• Unit of Measure: Each
• UPC: 00051141556109

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100055948