3M 7100308532 Cubitron 3 1187C Fiber Disc 36 Grit 5 Inch

Product Description

The 3M 7100308532 is a Cubitron 3 1187C ceramic fiber disc designed for aggressive material removal on metal, weld seams, and other hard surfaces. Built with a closed-coat construction and 36 plus grit ceramic abrasive, this disc cuts fast and stays sharp longer than conventional aluminum oxide alternatives. The resin bond holds the abrasive firmly under load, supporting a rated speed of 1200 RPM. Designed for use with standard angle grinders and disc grinders, these discs fit a 7/8 inch unthreaded arbor hole on a 5 inch diameter backing. Each case contains 100 discs, making this a practical stock item for shops and field crews running high-volume grinding operations.

This disc is suited for fabrication shops, structural steel work, pipe fitting, and general metal grinding where stock removal rate matters. The 36 plus grit designation targets rough grinding, deburring, and weld blending on ferrous and non-ferrous metals. Closed-coat coverage maximizes abrasive surface contact for consistent cut rate across the face of the disc. Trades commonly using this product include ironworkers, pipefitters, welders, and sheet metal mechanics.

Key Features

• Ceramic abrasive grain for faster cut and longer disc life compared to conventional abrasives
• Closed-coat construction maximizes abrasive coverage for consistent stock removal
• Resin bond system holds grain firmly under aggressive grinding pressure
• 36 plus grit rating suited for heavy stock removal and weld blending
• Rated at 1200 RPM for standard angle and disc grinder applications
• 100 discs per case for high-volume production and field use

Compatibility

Designed for use with angle grinders and disc grinders accepting a 5 inch diameter fiber disc with a 7/8 inch unthreaded arbor hole.

Installation Notes

Mounting and disc changes should be performed with the grinder disconnected from power. Verify the grinder's rated RPM meets or exceeds the disc's 1200 RPM rating before use. Inspect the disc for damage before each use and do not use a disc that shows cracks, tears, or delamination. Always use the appropriate guard and follow applicable ANSI B7.1 safety standards for abrasive wheel use.

Technical Specifications

• Series: Cubitron 3 1187C
• Abrasive Material: Ceramic
• Grit: 36 Plus
• Coating Coverage: Closed Coat
• Bond Type: Resin
• Diameter: 5 inches
• Arbor Hole Size: 7/8 inch
• Arbor Hole Type: Unthreaded
• Rated Speed: 1200 RPM
• Package Quantity: 100 per Case
• Weight: 1.762 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100308532