3M 7100099262 Quick Change Fibre Disc 120 Grit 7 Inch

Product Description

The 3M 7100099262 is a 7-inch Quick Change coated fibre disc built for aggressive material removal on hard-to-grind metals. Designated as the 787C series, it uses 3M Precision Shaped Grain — a structured abrasive mineral that delivers higher cut rates and a cooler grinding action compared to conventional fibre discs. Rated at 8600 RPM, it is suited for heavy-duty angle grinder work in fabrication and weld shops. A built-in grinding aid reduces heat buildup at the workpiece surface, making it particularly effective on heat-sensitive alloys. Licensed tradespeople and metal fabricators use this disc for weld removal, blending, and finish refinement.

This disc is designed for use on stainless steel and high nickel alloys in both production and job-site environments. Typical applications include weld grinding, beveling, edge chamfering, and surface blending where heat control is critical to workpiece integrity. The stiff fibre backing and strong resin bond resist tearing under load, extending disc life in heavyweight grinding tasks. It mounts via a quick-change attachment system compatible with 3M disc pad face plates and hubs, which are sold separately.

Key Features

• 3M Precision Shaped Grain provides higher cut rates and cooler grinding action than conventional abrasive minerals
• Built-in grinding aid minimizes heat generation — critical for stainless steel and high nickel alloys
• Stiff fibre backing with strong resin bond resists tearing and extends disc life under heavy load
• Quick-change mounting system reduces swap time between discs
• Rated at 8600 RPM for use with standard angle grinders
• Suited for weld removal, beveling, edge chamfering, and finish blending

Compatibility

Compatible with 3M disc pad face plates and hubs sold separately. Designed for quick-change angle grinder configurations accepting 7-inch fibre discs.

Installation Notes

Installation and disc changes should be performed by qualified personnel following applicable ANSI B11 and OSHA abrasive wheel safety guidelines. Verify the grinder's rated RPM meets or exceeds the disc's 8600 RPM maximum before mounting. Always power down and disconnect the grinder from its power source before changing discs. Inspect the disc for cracks or damage before each use and never exceed the rated speed marked on the disc.

Technical Specifications

• Disc Diameter: 7 inches
• Grit: 120
• Maximum RPM: 8600 RPM
• Abrasive Type: 3M Precision Shaped Grain
• Backing: Stiff fibre with resin bond
• Weight: 14.346 pounds
• Package Length: 21.59 inches
• Package Width: 8.7 inches
• Package Height: 8.95 inches
• UOM: Each
• Minimum Order Quantity: 100
• UPC: 076308896602

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100099262