Tru-maxx Fdt A120-100 Fiber Disc 120 Grit 4 Inches

Product Description

The TRU-MAXX FDT A120-100 is a 4-inch aluminum oxide fiber disc designed for aggressive material removal and surface finishing on metal, wood, and composites. Running a resinoid bond over a fiber backing, this coated abrasive disc delivers consistent cut at a fine 120 grit and is rated to 15,300 RPM for use with standard angle grinders and disc sanders. The maroon-colored disc mounts via a 5/8-inch arbor hole and is sold individually, with a minimum order quantity of 25 units. Licensed trades and production shops relying on repeatable finish work will find this disc well suited to deburring, blending, and light stock removal tasks.

This fiber disc is appropriate for general fabrication, metal finishing, and surface prep work in both shop and field environments. The 4-inch diameter fits compact angle grinders and backup pad assemblies commonly used by welders, pipefitters, and sheet metal workers. At 120 grit, the disc performs finishing and blending passes rather than heavy grinding, making it useful in sequential grit progressions where a coarser disc has already done initial stock removal. It is sold one disc per package in case quantities of 25, making it practical for stocking service vans or shop bins.

Key Features

• 120 grit aluminum oxide abrasive for fine-grade surface finishing and blending
• Fiber backing with resinoid bond provides durability under load
• Rated to 15,300 RPM for use with standard angle grinders
• 5/8-inch arbor hole for direct mounting on compatible backup pads
• Maroon coated disc — visually distinct for grit identification on the job
• Sold individually; minimum order of 25 units for restocking efficiency

Compatibility

Designed for use with 4-inch angle grinders and disc sanders equipped with a 5/8-inch arbor backup pad. Consult your grinder manufacturer specifications to confirm maximum RPM compatibility before use.

Installation Notes

Installation is performed by qualified tradespeople familiar with angle grinder safety protocols. Always confirm the tool's no-load RPM does not exceed the disc's 15,300 RPM rating before mounting. Power down and disconnect the grinder from its power source before changing discs. Inspect the disc for cracks or damage prior to each use and never use a damaged or delaminated disc.