Arc Abrasives 37204 Resin Fiber Disc 50 Grit 4-1/2 X 7/8 in

Product Description

The ARC ABRASIVES 37204 is a resin fiber disc engineered for aggressive material removal on metal surfaces. At 4-1/2 inches in diameter with a 7/8-inch arbor hole and a 50-grit abrasive surface, this disc is built for heavy stock removal and weld blending. The grain construction is paired with a resin fiber backing and a grinding aid that reduces heat buildup during use. Fabricators, welders, and metalworkers reach for this disc when working on steel, aluminum, and other non-ferrous metals where consistent cut rate and disc longevity both matter.

This disc is suited for use on angle grinders in fabrication shops, maintenance facilities, and production environments. It handles flat grinding, edge work, and surface prep on a range of metal substrates. The 50-grit rating makes it appropriate for initial material removal and weld grinding before finishing steps. It is sold in pack quantities, making it practical for ongoing shop use where disc turnover is regular.

Key Features

• 50-grit abrasive surface for aggressive stock removal and weld blending
• 4-1/2-inch diameter with 7/8-inch arbor fits standard angle grinders
• Resin fiber backing provides durability under sustained grinding pressure
• Grinding aid reduces heat and extends disc life on metal surfaces
• Compatible with steel, aluminum, and non-ferrous metals

Compatibility

Designed as a replacement-style resin fiber disc for use with standard 4-1/2-inch angle grinders accepting a 7/8-inch arbor.

Installation Notes

Installation of abrasive discs should be performed by qualified personnel following the angle grinder manufacturer's mounting instructions. Inspect the disc for damage before each use and never exceed the maximum RPM rating marked on the disc or tool. Wear appropriate PPE including eye protection and gloves during disc changes and grinding operations. Ensure the grinder is fully powered down and unplugged before mounting or removing the disc.

Technical Specifications

• Diameter: 4-1/2 inches
• Arbor Size: 7/8 inches
• Grit: 50
• Disc Type: Resin Fiber
• Weight: 1 pound
• Unit of Measure: Pack

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 37204