3M 7000119300 Roloc Disc Pad 4 in Extra Hard 5/8-11

Product Description

The 3M 7000119300 is an extra hard rubber backup pad engineered to support Roloc 4-inch diameter abrasive discs in demanding grinding and finishing applications. The pad features a 5/8-11 internal thread for direct mounting to compatible angle grinders and disc sanders. A large 11/16-inch hex nut simplifies installation and removal without specialty tooling. The extra hard durometer keeps the disc flat and stable at higher contact pressures, making it well suited for aggressive stock removal on metal, welds, and fabricated surfaces. Licensed tradespeople and fabrication shop technicians are the primary installers of this type of pad.

This backup pad is used with Roloc quick-change 4-inch abrasive discs across metal fabrication, weld blending, surface prep, and deburring operations. It is intended for use on angle grinders and die grinders equipped with a 5/8-11 threaded spindle. The extra hard compound is preferred when working on flat or slightly contoured surfaces where maximum disc contact and minimal flex are required. It is sold individually and is a direct-mount solution requiring no additional adapter hardware.

Key Features

• Extra hard rubber construction maintains disc flatness under high contact pressure
• 4-inch diameter matches standard Roloc quick-change abrasive discs
• 5/8-11 internal thread mounts directly to compatible grinder spindles
• Large 11/16-inch hex nut for tool-free or wrench-assisted installation
• Sold individually — no adapter required for direct spindle mounting

Compatibility

Designed for use with Roloc 4-inch diameter quick-change abrasive discs on angle grinders and disc sanders with a 5/8-11 threaded spindle.

Installation Notes

Thread the pad onto the tool spindle by hand until snug, then use a wrench on the 11/16-inch hex nut to secure if needed. Always power down and disconnect or de-energize the tool before mounting or removing the backup pad. Inspect the pad for cracks, deformation, or wear before each use and replace if damage is found. Follow the tool and abrasive disc manufacturers maximum RPM rating to avoid disc or pad failure.

Technical Specifications

• Pad Diameter: 4 inches
• Thread Size: 5/8-11 internal
• Hex Nut Size: 11/16 inches
• Hardness: Extra Hard
• Weight: 0.3 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000119300