3M 7100105520 Square Abrasive Pad 341D 120 Grit

Product Description

The 3M 7100105520 is a square abrasive pad in the 341D series, designed for fast grinding and blending in tight geometry workspaces. Measuring 3 inches x 3 inches x 1/4 inches and rated at 120 grit (P120), it is built on an X-weight cloth backing for durability under sustained pressure. The aluminum oxide mineral construction delivers consistent cut and wear characteristics. As the pad rotates, its corners bite aggressively into the work surface, then wear down to expose fresh abrasive underneath. Tradespeople use this pad for weld grinding, surface prep, and blending passes where a round pad cannot reach.

This pad is suited for channel grinding, fillet work, corner weld cleaning, and spotting on flat surfaces. The square geometry provides control and access in confined areas that round pads cannot address effectively. Fabricators, welders, and metal finishing technicians working in sheet metal, structural steel, and general manufacturing environments are the primary users. The X-weight cloth backing handles the lateral and rotational forces typical of aggressive grinding applications without delaminating or folding under load.

Key Features

• Square geometry enables corner access for weld grinding and blending in channels, fillets, and tight inside corners
• 120 grit (P120) aluminum oxide mineral for consistent, fast material removal
• X-weight cloth backing provides durability and resistance to tearing under rotational load
• Self-renewing abrasive surface — corners wear down to expose fresh mineral as the pad rotates
• Smooth running pad design offers operator control during spotting and blending passes

Compatibility

Designed as an OEM-style replacement and standard-fit abrasive pad for right-angle grinders and disc sanders accepting 3-inch square abrasive pad formats.

Installation Notes

This pad is installed and replaced by fabricators, welders, and metal finishing technicians. Before mounting or removing the pad, power down and disconnect the grinder or sander from its power source. Ensure the backing plate or pad holder is rated for the pad size and rotational speed before use. Follow ANSI B7.1 and all tool manufacturer guidelines for abrasive mounting and maximum operating speed.

Technical Specifications

• Series: 341D
• Grit: 120 (P120)
• Dimensions: 3 inches x 3 inches x 1/4 inches
• Abrasive Mineral: Aluminum Oxide
• Backing: X-Weight Cloth
• Shape: Square
• Unit of Measure: Each
• Minimum Order Quantity: 50
• UPC: 00051144977239

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100105520