3M 7100094358 Flap Disc 40 Grit 4.5 Inch Type 27

Product Description

The 3M 7100094358 is a Cubitron II 967A flap disc designed for medium-pressure grinding, weld leveling, and surface preparation on flat and contoured workpieces. Built with 3M Precision-Shaped Grain, the disc cuts aggressively at 40 grit while maintaining a longer usable life compared to conventional abrasive flap discs. The poly-cotton backing provides controlled, even wear under medium unit pressure. At 4.5 inches in diameter with a Type 27 profile, it mounts to standard right-angle grinders. Fabricators, welders, and metalworkers install this disc for deburring, weld removal, and pre-paint surface prep on mild steel and stainless steel.

The 967A flap disc is suited for light deburring, weld leveling, and finish work on mild steel and stainless steel fabrication. The Type 27 flat profile allows flush grinding on flat surfaces and works effectively on contoured profiles. It delivers less gouging than fiber discs and bonded wheels, making it a practical choice where surface finish quality matters before coating or painting. Individual flaps break down progressively during use, continuously exposing fresh abrasive mineral and maintaining a consistent cut rate throughout the life of the disc.

Key Features

• 3M Precision-Shaped Grain for fast, consistent cutting at 40 grit
• Poly-cotton backing delivers controlled, even wear under medium unit pressure
• Individual flaps break down progressively to expose fresh mineral and maintain cut rate
• Type 27 right-angle profile suits flat and contoured surface grinding
• Less gouging than fiber discs and bonded abrasive wheels
• Effective on mild steel and stainless steel for deburring and weld leveling

Compatibility

Designed for use with standard right-angle grinders accepting 4.5-inch Type 27 flap discs. Suitable for mild steel and stainless steel applications including weld removal, deburring, and pre-paint surface preparation.

Installation Notes

Install and remove flap discs only while the grinder is fully powered off and disconnected from its power source. Verify the grinder spindle speed rating meets or exceeds the maximum RPM rating of the disc before mounting. Use the appropriate flange and locking nut specified by the grinder manufacturer. Wear appropriate PPE including eye protection, a face shield, and gloves when operating angle grinders with abrasive discs.

Technical Specifications

• Disc Diameter: 4.5 inches
• Grit: 40
• Disc Type: Type 27 (Right Angle)
• Abrasive Grain: 3M Precision-Shaped Grain
• Backing Material: Poly-cotton
• Package Weight: 3.15 pounds
• Package Length: 8.4 inches
• Package Width: 5.2 inches
• Package Height: 5.6 inches
• UPC: 051125868551

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100094358