Tru-maxx Fdt Z036-100-T Fiber Disc 36 Grit 4 Inches

Product Description

The TRU-MAXX FDT Z036-100-T is a 4-inch zirconia alumina fiber disc designed for aggressive material removal on metal and fabricated surfaces. Running at up to 15,300 RPM with a resinoid bond and fiber backing, this disc delivers consistent cut rate under load. The 36-grit very coarse grade tears through weld seams, mill scale, and rust quickly, reducing cycle time on prep work. It mounts via a 5/8-inch arbor hole and is sized for standard 4-inch right-angle grinders. Metalworkers, fabricators, and maintenance trades reach for this disc when fast, controlled stock removal is the priority.

This disc is suited for use in metal fabrication shops, structural steel work, and general maintenance grinding applications. It performs on ferrous metals including carbon steel and stainless, where a coarse initial pass is needed before finishing steps. The blue fiber backing resists heat buildup and flex under pressure, making it a practical choice for flat and near-flat surface work with a right-angle grinder. Typical users include welders, pipefitters, ironworkers, and industrial maintenance technicians.

Key Features

• 36-grit very coarse zirconia alumina abrasive for fast stock removal
• 4-inch disc diameter fits standard right-angle grinders
• 5/8-inch arbor hole for secure, centered mounting
• Maximum rated speed of 15,300 RPM
• Resinoid bond holds abrasive grain firmly under high-pressure grinding
• Fiber backing provides rigidity and heat resistance during use

Compatibility

Designed as a direct-mount replacement for 4-inch fiber discs with a 5/8-inch arbor hole attachment on right-angle grinders and disc grinders rated for coated abrasive accessories.

Installation Notes

Fiber discs of this type are installed and removed by a licensed or experienced tradesperson using a proper backing pad matched to the disc diameter. Before mounting, confirm the grinder is rated at or above the disc maximum RPM and that the power tool is fully disconnected from its power source. Inspect the disc for cracks, tears, or delamination before each use and discard any damaged disc immediately. Follow ANSI B7.1 and tool manufacturer guidelines for guard placement and personal protective equipment during grinding operations.