3M 7100099302 Quick Change Fibre Disc 36 Grit 5 Inch

Product Description

The 3M 7100099302 is a 5-inch quick-change coated fibre disc designed for aggressive material removal on carbon steel. Built around 3M Precision Shaped Grain abrasive technology, the 782C disc delivers significantly higher cut rates than conventional fibre discs while completing more parts per disc before replacement. The stiff fibre backing and heavy-duty resin bond resist tearing under load. Rated at 12000 RPM, this disc is suited for angle grinders and disc grinders used in fabrication and metalworking environments. It is sold individually and used with a compatible quick-change disc pad face plate and hub.

This disc is built for heavy-duty applications in metal fabrication shops, structural steel work, and welding operations. Primary use cases include weld removal, weld blending, beveling, edge chamfering, and surface finish refinement on carbon steel. The 36-grit designation makes it appropriate for initial stock removal and weld grinding passes where fast cut and long disc life are the priority. Licensed trades and skilled metalworkers in industrial and manufacturing settings are the primary installers and operators.

Key Features

• 3M Precision Shaped Grain abrasive delivers faster cut rates and longer disc life than conventional minerals
• 36-grit coated construction suited for aggressive stock removal, weld grinding, and beveling
• Stiff fibre backing and strong resin bond provide tear resistance under heavy load
• 12000 RPM max speed rating compatible with standard angle grinder and disc grinder operation
• Quick-change attachment system works with 3M disc pad face plates and hubs (sold separately)
• 5-inch diameter for use on standard 5-inch quick-change grinder pads

Compatibility

Compatible with 3M disc pad face plates and hubs sold separately. Designed for use on angle grinders and disc grinders accepting 5-inch quick-change fibre discs rated to 12000 RPM.

Installation Notes

Always verify the grinder RPM rating meets or exceeds the disc maximum of 12000 RPM before mounting. Power down and disconnect the grinder from its power source before changing discs. Secure the disc fully to the face plate and hub assembly before operation, and confirm the locking mechanism is fully engaged. Operators should wear appropriate PPE including face shield, gloves, and hearing protection per applicable shop safety standards.

Technical Specifications

• Disc Diameter: 5 inches
• Grit: 36
• Max Speed: 12000 RPM
• Abrasive Type: Precision Shaped Grain, Coated
• Backing: Fibre
• Package Weight: 8.421 pounds
• Package Length: 21.59 inches
• Package Width: 6.7 inches
• Package Height: 6.95 inches
• UPC: 076308895933

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100099302