Tru-maxx Fdt A120-115 Fiber Disc 120 Grit 4-1/2 in

Product Description

The TRU-MAXX FDT A120-115 is a 120-grit aluminum oxide fiber disc designed for grinding, blending, and surface preparation on metal and other hard materials. The disc measures 4-1/2 inches in diameter with a 7/8-inch arbor hole for direct mounting to angle grinders and disc sanders. Aluminum oxide abrasive bonded with a resinoid bond onto a fiber backing delivers consistent cut rate and durability across a range of stock-removal tasks. Rated to 13,300 RPM, this disc is suited for sustained use in production and maintenance environments where fine-grade finishing is required.

This fiber disc is used in metal fabrication shops, welding operations, and general maintenance settings where fine-grade surface work is needed. Typical applications include weld blending, light deburring, and surface conditioning on steel and other ferrous metals. The arbor-hole attachment type allows quick mounting on standard angle grinder backing pads. The maroon disc color indicates a fine-grade abrasive, appropriate for finishing passes rather than heavy material removal.

Key Features

• 120-grit aluminum oxide abrasive for fine-grade cutting and surface finishing
• 4-1/2 inch disc diameter fits standard angle grinders and disc sanders
• 7/8-inch arbor hole with arbor-hole attachment type for secure, centered mounting
• Resinoid bond holds abrasive grains firmly for consistent cut throughout disc life
• Fiber backing provides rigidity and support during aggressive contact grinding
• 13,300 RPM maximum speed rating suits common angle grinder operating ranges

Compatibility

Designed for use with standard angle grinders and disc sanders that accept 4-1/2 inch fiber discs with a 7/8-inch arbor hole and a compatible backing pad.

Installation Notes

Installation should be performed by a qualified operator familiar with abrasive product safety. Always confirm the grinder's no-load RPM does not exceed the 13,300 RPM disc rating before mounting. Power down and disconnect the grinder from its power source before attaching or removing the disc. Inspect the disc for cracks, chips, or damage before each use and do not use a damaged disc.