Tru-maxx Fdt A100-100 Fiber Disc 100 Grit 4 Inches

Product Description

The TRU-MAXX FDT A100-100 is a coated abrasive fiber disc designed for material removal and surface finishing on metal, weld cleanup, and general fabrication work. Built on a fiber backing with a resinoid bond, it carries aluminum oxide grain at 100 grit for a fine cut that smooths surfaces without aggressive stock removal. The disc measures 4 inches in diameter with a 5/8 inch arbor hole for straightforward mounting on standard angle grinders and disc grinders. Rated to 15,300 RPM, it suits fast-paced production and maintenance grinding where consistent finish quality matters. Metalworkers, fabricators, and maintenance trades reach for this disc when a controlled, fine-grade cut is needed.

This fiber disc fits residential and commercial fabrication, light manufacturing, and field maintenance applications. It is well suited for weld blending, edge deburring, and surface prep before coating or painting on steel and other ferrous materials. The 4 inch size is a common fit for right-angle grinders used in tight spaces or on smaller workpieces. The fine 100 grit grade makes it appropriate as a finishing step after coarser material removal has been completed.

Key Features

• Aluminum oxide abrasive grain — durable and suited for ferrous metals
• 100 grit fine grade for controlled surface finishing and weld blending
• Fiber backing with resinoid bond for stability under load
• 4 inch diameter with 5/8 inch arbor hole for standard angle grinder compatibility
• Maximum operating speed of 15,300 RPM
• Maroon disc color for quick grit-grade identification in the shop

Compatibility

Designed for use with standard 4 inch angle grinders and disc grinders that accept a 5/8 inch arbor hole attachment.

Installation Notes

Installation is performed by qualified trades or experienced operators following standard abrasive wheel mounting procedures. Always confirm the grinder spindle speed does not exceed the 15,300 RPM disc rating before mounting. Inspect the disc for cracks or damage before each use and discard any disc that shows signs of deterioration. Use the appropriate backing pad for fiber disc type and ensure the arbor nut is secured per the tool manufacturer's guidelines.