Tru-maxx 66254443451 Type 27 Flap Disc 80 Grit 4.5 in

Product Description

The TRU-MAXX 66254443451 is a Type 27 coated flap disc designed for angle grinder use in metal fabrication and weld finishing applications. Constructed with zirconia alumina abrasive on a poly-cotton backing and a fiberglass backing plate, this disc delivers consistent stock removal at medium grade (80 grit). The 5/8-11 threaded arbor hole mounts directly to standard angle grinders without an adapter. Rated at 13,300 RPM maximum, the high-density flap construction provides extended life across heavy-duty grinding tasks. Metal fabricators, pipefitters, and welders rely on this disc type for fast, controlled material removal.

This flap disc is suited for work on steel and stainless steel in both shop and field environments. Typical applications include beveling plate edges, removing weld beads, and deburring cut edges on fabricated components. The Type 27 flat profile keeps the disc flush to the workpiece surface, making it well-suited for flat stock and weld seam blending where a depressed-center wheel would be used. The 4-1/2 inch diameter fits the most common class of compact angle grinders used by tradespeople in structural, mechanical, and maintenance work.

Key Features

• 80 grit zirconia alumina abrasive for medium-grade stock removal on steel and stainless steel
• Type 27 flat profile for flush surface contact during beveling and weld removal
• 5/8-11 threaded arbor hole fits standard angle grinders directly
• 13,300 RPM maximum speed rating for safe use on common compact angle grinders
• High-density flap construction on fiberglass backing plate for durability under load
• Poly-cotton backing supports consistent abrasive contact through the disc life

Compatibility

Designed as a direct-mount replacement for 4-1/2 inch Type 27 flap discs with a 5/8-11 threaded arbor hole, compatible with angle grinders rated at or below 13,300 RPM.

Installation Notes

Install and remove flap discs only with the grinder unplugged or the battery pack removed. Inspect the disc for damage before each use and do not exceed the maximum RPM rating marked on the disc. Wear appropriate PPE including a face shield and gloves during operation. Always verify that the grinder guard is in place before starting the tool.