Tru-maxx 66254443439 7in 80 Grit Type 29 Flap Disc

Product Description

The TRU-MAXX 66254443439 is a 7-inch Type 29 flap disc designed for aggressive material removal and surface blending on steel and stainless steel. It uses a zirconia alumina abrasive bonded to a poly-cotton backing, which provides consistent cut rate and extended disc life compared to standard aluminum oxide options. The Type 29 conical geometry presents the abrasive at an angle that concentrates grinding pressure, making it effective for stock removal on flat and contoured surfaces. Rated at 8,600 RPM, this disc mounts via a 5/8-11 threaded arbor hole and is suited for use on 7-inch right-angle grinders. It carries a medium grade designation at 80 grit, balancing cut speed with surface finish. Licensed trades and fabrication shops use this disc for weld blending, deburring, and prep work.

This flap disc is intended for metalworking applications involving mild steels and stainless steel in both shop and field environments. The GP-Z series designation indicates a general-purpose zirconia line appropriate for production grinding where consistent performance across multiple passes is required. Typical installations include weld seam blending on structural steel, surface conditioning on stainless fabrications, and edge cleanup on plate and pipe. It is sold as a single disc per package.

Key Features

• Type 29 conical flap orientation for aggressive stock removal on flat and contoured surfaces
• Zirconia alumina abrasive for longer disc life and higher cut rate versus aluminum oxide
• Poly-cotton backing provides flexibility and consistent abrasive presentation throughout disc life
• 5/8-11 threaded arbor hole mounts directly to standard right-angle grinders
• 80 grit medium grade balances material removal speed with usable surface finish
• Rated to 8,600 RPM for safe operation on 7-inch grinders

Compatibility

Designed for use on 7-inch right-angle grinders equipped with a 5/8-11 threaded spindle. Suitable for grinding and blending operations on steels and stainless steel as noted in the manufacturer material application data.

Installation Notes

This disc is installed and operated by metalworkers, fabricators, and trade professionals using 7-inch angle grinders. Before mounting, verify the grinder spindle speed does not exceed the 8,600 RPM disc rating. Inspect the disc for damage before each use and discard any disc that shows cracking, separation, or uneven flap wear. Always use the appropriate guard and personal protective equipment including eye and face protection when operating abrasive discs.