3M 7100049327 Cubitron Ii 967A 5 Inch 40 Grit Flap Disc

Product Description

The 3M 7100049327 is a 5-inch, 40-grit right-angle flap disc built on 3M Precision-Shaped Grain technology under the Cubitron II 967A series. Designed for medium-pressure grinding and surface preparation, it cuts fast and resists loading on both mild steel and stainless steel. The poly-cotton backing promotes controlled, even wear across the disc face, and individual flaps break down progressively to expose fresh mineral throughout the disc life. Metal fabricators, welders, and finishing technicians reach for this disc when leveling welds, light deburring, or prepping surfaces for paint or coating.

This flap disc fits standard right-angle grinders and is suited for flat and contoured workpiece geometry. Its primary use cases include weld removal and leveling, light deburring, and surface prep on mild steel and stainless steel fabrications where gouge resistance and finish quality matter. The 40-grit cut rate makes it a practical choice for medium-duty stock removal without excessive surface damage.

Key Features

• 3M Precision-Shaped Grain delivers a fast, consistent cut rate for the life of the disc
• Poly-cotton backing provides controlled, even wear under medium unit pressure
• Progressive flap breakdown continuously exposes fresh abrasive mineral
• Less gouging compared to fiber discs and bonded grinding wheels
• Effective on both mild steel and stainless steel surfaces
• Balances cut speed and disc longevity for medium-duty applications

Compatibility

Designed for use on standard right-angle grinders accepting 5-inch flap discs; suited for medium-pressure surface preparation, weld leveling, and light deburring on mild steel and stainless steel.

Installation Notes

Flap discs of this type are mounted and removed by qualified metalworkers or fabricators following grinder manufacturer guidelines. Verify the grinder RPM rating meets or exceeds the disc RPM rating before use. Inspect the disc for damage before each use and replace if flaps are torn or the hub is cracked. Always wear appropriate PPE including face shield, gloves, and hearing protection during operation.

Technical Specifications

• Diameter: 5 inches
• Grit: 40
• Disc Type: Right Angle Flap Disc
• Abrasive Series: Cubitron II 967A
• Backing Material: Poly-cotton
• Package Weight: 3.956 pounds
• Package Length: 8.88 inches
• Package Width: 5.75 inches
• Package Height: 6.13 inches
• UPC: 051141541803

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100049327