Norton 63642595479 Quick-change Cloth Disc 3 in R80P Extra Coarse

Product Description

The NORTON 63642595479 is a quick-change cloth disc designed for aggressive material removal on metal surfaces. Sized at 3 inches and rated Extra Coarse at R80P grit, this disc features 100% ceramic grain that continuously fractures during use, constantly exposing fresh, sharp cutting edges. This design delivers high stock removal rates while keeping overall abrasive cost low. A self-lubricating grain treatment controls heat buildup during grinding, making it well suited for heat-sensitive metals. The TR quick-change attachment system allows fast disc swaps without tools, reducing downtime on production grinding tasks. Licensed metalworkers, fabricators, and weld shop technicians are the primary installers.

This disc is built for demanding grinding, weld blending, and deburring applications on hard-to-grind materials. It performs particularly well on 300 Series and 400 Series stainless steel, as well as exotic alloys where heat generation and grain breakdown are common problems with standard abrasives. The Extra Coarse grit level prioritizes speed of cut over surface finish, making it the right choice for initial stock removal and heavy weld blend-down rather than finishing passes. Discs are sold in boxes of 25.

Key Features

• 100% ceramic grain fractures continuously to expose sharp cutting edges throughout disc life
• Self-lubricating grain treatment reduces heat buildup for cooler cutting on stainless and exotic alloys
• Improved resin bond system maximizes grain retention for extended disc life
• Extra Coarse R80P grit delivers fastest stock removal, weld blending, and deburring rates
• TR quick-change attachment system allows tool-free disc changes
• CA ceramic abrasive cloth backing supports aggressive grinding applications

Compatibility

Designed for use with TR quick-change disc holders and compatible right-angle grinders or die grinders that accept the TR attachment system. Best suited for grinding 300 Series stainless steel, 400 Series stainless steel, and exotic alloys.

Installation Notes

Installation and disc changes should be performed by qualified metalworkers or fabricators following applicable shop safety procedures. Always power down and disconnect the grinder from its power source before mounting or removing a disc. Verify that the grinder RPM rating meets or exceeds the disc RPM rating before operation. Wear appropriate PPE including eye protection and gloves when operating grinding equipment.

Technical Specifications

• Disc Diameter: 3 inches
• Grit Grade: Extra Coarse
• Grit Designation: R80P
• Abrasive Type: Ceramic (CA)
• Attachment Type: TR Quick-Change
• Quantity Per Box: 25
• UPC: 636425954798

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 63642595479