3M 7100099290 Quick Change Fibre Disc 36 Grit 7 Inch

Product Description

The 3M 7100099290 is a 7-inch Quick Change fibre disc designed for high-speed material removal on hard-to-grind metals. It is built with 3M Precision Shaped Grain, a structured abrasive mineral that delivers higher cut rates and a cooler cut compared to conventional fibre discs. A grinding aid is incorporated into the disc construction to minimize heat buildup, making it well suited for heat-sensitive alloys. Rated at 8600 RPM and sized at 7 inches in diameter with a 36 grit designation, this disc targets weld removal, blending, and surface refinement tasks. It is used by fabricators, welders, and metal finishing professionals.

This disc is engineered for use on stainless steel and high nickel alloys in both fabrication and finishing applications. Typical use cases include weld grinding, edge beveling, edge chamfering, and blend finishing on structural components and process equipment. The quick change attachment system allows for fast disc swaps without additional tooling, reducing downtime between tasks. It is 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 compared to conventional fibre discs
• Grinding aid reduces heat generation, protecting heat-sensitive stainless steel and high nickel alloys
• Stiff fibre backing and strong resin bond deliver durability and tear resistance under heavy load
• Quick change mounting system enables rapid disc changes without extra tooling
• 36 grit designation targets aggressive stock removal, weld blending, and chamfering
• Long service life per disc lowers per-part abrasive cost

Compatibility

Compatible with 3M disc pad face plates and hubs sold separately. Designed for use on stainless steel and high nickel alloys with angle grinders or disc grinders accepting 7-inch quick change fibre discs rated at or above 8600 RPM.

Installation Notes

Installation should be performed by qualified personnel following the grinder and disc manufacturer safety guidelines. Confirm the grinder's maximum RPM rating meets or exceeds 8600 RPM before mounting. Power down and disconnect the grinder from its power source before mounting or removing the disc. Always use the appropriate disc pad face plate and hub rated for this disc diameter and speed.

Technical Specifications

• Diameter: 7 inches
• Grit: 36
• Maximum Speed: 8600 RPM
• Abrasive Type: Precision Shaped Grain
• Backing: Fibre
• Package Dimensions: 21.59 inches x 8.7 inches x 8.95 inches
• Package Weight: 14.946 pounds
• UPC: 076308896329
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100099290