3M 7100052279 Cubitron Ii 967A Flap Disc 7 Inch 40 Grit

Product Description

The 3M 7100052279 is a 7-inch, 40-grit right-angle flap disc from the Cubitron II 967A series, designed for medium-pressure grinding and surface preparation on flat and contoured workpieces. Built with 3M Precision-Shaped Grain, the abrasive mineral is engineered to fracture into sharp edges as it wears, maintaining a fast, consistent cut rate throughout the life of the disc. The poly-cotton backing provides controlled, even wear under medium unit pressure. This disc is suited for weld leveling, light deburring, and pre-paint surface prep on mild steel, as well as stainless steel fabrication where finish quality and gouge resistance are priorities.

The 967A flap disc is used in metal fabrication shops, maintenance and repair operations, and structural steel environments. It performs on flat surfaces and follows contoured geometry without the aggressive gouging associated with fiber discs or bonded grinding wheels. Typical applications include weld seam removal, scale removal, and blending prior to coating or inspection. Fabricators and ironworkers are the primary installers, using standard right-angle grinders at the appropriate RPM for a 7-inch disc.

Key Features

• 3M Precision-Shaped Grain delivers a fast cut rate that is maintained as individual flaps wear down and expose fresh mineral
• Poly-cotton backing supports controlled, even wear under medium unit pressure
• Less gouging than fiber discs and bonded wheels, improving surface finish quality
• Effective on both mild steel and stainless steel fabrication applications
• Right-angle mounting configuration for use with standard angle grinders
• Balanced combination of cut speed and disc longevity reduces changeover frequency

Compatibility

Designed as an OEM-style replacement-grade flap disc for use with right-angle grinders rated for 7-inch abrasive accessories at the appropriate maximum RPM.

Installation Notes

Installation and operation should be performed by trained metalworking or fabrication professionals familiar with abrasive wheel safety requirements. Verify the grinder spindle speed does not exceed the maximum RPM rating marked on the disc before mounting. Inspect the disc for damage before each use and do not use a disc that shows signs of delamination or impact damage. Always use the appropriate guard and personal protective equipment per ANSI B11 and OSHA abrasive wheel standards.

Technical Specifications

• Disc Diameter: 7 inches
• Grit: 40
• Disc Type: Flap Disc
• Mounting Style: Right Angle
• Abrasive Series: Cubitron II 967A
• Backing Material: Poly-Cotton
• Weight: 0.72 pounds
• Package Dimensions: 7.7 x 7.7 x 6.2 inches
• UOM: Each
• UPC: 00051141556536

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100052279