Tru-maxx Fdt A036-115 Fiber Disc 36 Grit 4.5 in Aluminum Oxide

Product Description

The TRU-MAXX FDT A036-115 is a coated abrasive fiber disc designed for aggressive material removal on metal, weld seams, and rough surface prep. Built on a resinoid-bonded fiber backing, the disc carries 36-grit aluminum oxide abrasive grain rated at Very Coarse grade. At 4.5 inches in diameter with a 7/8-inch arbor hole, it mounts directly to standard right-angle grinders and disc sanders. The resinoid bond holds grain securely under load, and the maximum rated speed of 13,300 RPM suits most 4.5-inch angle grinders used in fabrication and maintenance work.

This fiber disc is used in metal fabrication shops, welding operations, and general industrial maintenance where fast stock removal is the priority. Typical applications include grinding weld spatter, blending welds, deburring plate edges, and removing rust or mill scale from steel and iron surfaces. It is sold individually but requires a minimum order of 25 units, making it suited for shop restocking rather than single-use purchasing. Installers and fabricators in HVAC duct work, pipefitting, and structural trades will find the aggressive 36-grit cut appropriate for prep work before fitting or welding.

Key Features

• 36-grit aluminum oxide grain delivers fast, aggressive stock removal on ferrous metals
• Resinoid bond holds abrasive grain firmly under high-load grinding conditions
• Fiber backing provides rigidity and durability compared to cloth or paper alternatives
• 7/8-inch arbor hole fits standard right-angle grinder and disc sander spindles
• Rated to 13,300 RPM for safe use on common 4.5-inch angle grinders
• Very Coarse grade suits initial surface prep, weld blending, and rust removal

Compatibility

Designed for use with 4.5-inch right-angle grinders and disc sanders equipped with a standard 7/8-inch arbor and a compatible fiber disc backing pad.

Installation Notes

A licensed or experienced fabricator should inspect the backing pad and disc for damage before mounting. Always power down and unplug or lock out the grinder before installing or removing the disc. Confirm the tool's rated no-load RPM does not exceed 13,300 RPM before operation. Wear appropriate PPE including a face shield, gloves, and hearing protection when grinding.