3M 7100178254 Quick Change Fibre Disc 80 Grit 4.5 in

Product Description

The 3M 7100178254 is a quick-change coated fibre disc engineered for high-cut grinding on hard-to-grind metals. At 4.5 inches in diameter with an 80-grit rating, it uses 3M Precision Shaped Grain technology to deliver faster cut rates and a cooler grinding temperature compared to conventional fibre discs. A built-in grinding aid reduces heat buildup, making it well suited for heat-sensitive alloys. The stiff fibre backing and heavy-duty resin bond provide durability and tear resistance through demanding workloads. This disc is installed and used by metal fabricators, welders, and maintenance technicians working with angle grinders.

This disc is designed for aggressive material removal on stainless steel and high-nickel alloys in fabrication and maintenance settings. Typical applications include weld removal, weld blending, beveling, edge chamfering, and finish refinement. The quick-change attachment system allows for faster disc swaps compared to standard threaded or pressure-sensitive mounting. Compatible with 3M disc pad face plates and hubs, which are sold separately.

Key Features

• 3M Precision Shaped Grain delivers higher cut rates and cooler grinding versus conventional fibre discs
• Built-in grinding aid minimizes heat buildup on heat-sensitive alloys such as stainless steel and high-nickel alloys
• Stiff fibre backing and strong resin bond provide tear resistance during heavy-duty grinding
• Quick-change mount design reduces disc swap time
• Suited for weld removal, beveling, edge chamfering, and surface blending
• Long service life per disc helps lower cost per part

Compatibility

Compatible with 3M disc pad face plates and hubs sold separately. Designed for use with standard angle grinders accepting 4.5-inch quick-change fibre discs.

Installation Notes

Install and remove this disc only with the grinder powered off and unplugged or locked out. Confirm the face plate and hub are rated for the disc diameter and operating speed before use. Inspect the disc for damage before each use and discard any disc that shows tears, cracks, or delamination. Eye protection, hearing protection, and appropriate gloves should be worn during grinding operations.

Technical Specifications

• Diameter: 4.5 inches
• Grit: 80
• Disc Type: Quick Change Coated Fibre Disc
• Abrasive Mineral: 3M Precision Shaped Grain
• Application: Weld removal, blending, beveling, edge chamfering, finish refinement on stainless steel and high-nickel alloys
• Weight: 6.162 pounds
• Package Length: 21.59 inches
• Package Width: 6.7 inches
• Package Height: 6.95 inches
• UPC: 638060298164

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100178254