3M 7000119178 Cubitron Ii 987C Fibre Disc 36 Grit

Product Description

The 3M 7000119178 is a Cubitron II 987C coated fibre disc engineered for medium to heavy-duty metal grinding, weld grinding, and beveling operations. At 9.125 inches in diameter with a 36-grit cut and a rated speed of 6,600 RPM, this disc uses 3M Precision-Shaped Grain technology to maintain consistently sharp cutting points throughout the disc life. A stiff fibre backing paired with a strong resin bond delivers tear resistance under high-pressure applications. A built-in grinding aid reduces surface temperatures, making this disc appropriate for heat-sensitive alloys and demanding production environments. Licensed trades and fabrication professionals are the primary installers.

This disc is designed for use in angle grinder and robotic grinding applications where high cut rates and extended disc life are critical. It is well suited to weld grinding, bevel preparation, and heavy stock removal on ferrous and heat-sensitive alloys. The stiff backing supports consistent contact in both hand-operated and pressure-assisted or automated grinding setups, reducing the frequency of disc changes and minimizing downtime in production settings.

Key Features

• 3M Precision-Shaped Grain maintains sharp cutting points for fast material removal with less applied pressure
• Stiff fibre backing and strong resin bond provide durability and tear resistance in high-pressure weld grinding and beveling
• Integrated grinding aid minimizes heat buildup, protecting heat-sensitive alloys during aggressive stock removal
• Higher cut rate and longer disc life compared to conventional fibre discs, reducing changeouts and downtime
• Rated to 6,600 RPM for use in standard angle grinder applications
• Suitable for robotic and pressure-assisted grinding systems

Compatibility

Designed as an OEM-style replacement fibre disc for standard angle grinders and robotic grinding systems accepting 9.125-inch diameter fibre discs with a compatible arbor size.

Installation Notes

This disc should be installed and operated by qualified metalworking or fabrication professionals familiar with abrasive wheel safety. Verify the grinder spindle speed does not exceed the disc rated speed of 6,600 RPM before mounting. Inspect the disc for damage before each use and ensure the backing pad and guard are appropriate for the disc diameter. Follow ANSI B7.1 and applicable machine guarding standards when mounting and operating grinding discs.

Technical Specifications

• Diameter: 9.125 inches
• Grit: 36
• Maximum Speed: 6,600 RPM
• Disc Type: Coated Fibre Disc
• Abrasive Mineral: 3M Precision-Shaped Grain
• Backing: Stiff Fibre
• Application: Weld Grinding, Beveling, Heavy Stock Removal
• Weight: 0.26 pounds
• Package Length: 12.71 inches
• Package Width: 10.7 inches
• Package Height: 10.95 inches
• Sold As: Each
• UPC: 00051141274508

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000119178