Norton 66254461188 Flap Disc 36 Grit Type 29 7 Inch

Product Description

The NORTON 66254461188 is a Type 29 flap disc designed for aggressive material removal on metal, weld seams, and fabricated surfaces. Built with zirconia alumina abrasive on a cloth backing, it delivers a very coarse 36-grit cut that bites into steel and stainless quickly without loading. The angled flap configuration of the Type 29 geometry provides a larger contact area on flat and contoured work surfaces, making it a go-to choice for grinding and blending in a single pass. Rated at 8,600 RPM, it fits standard angle grinders with a 5/8-11 arbor. Metal fabricators, welders, and pipefitters are the primary users of this disc.

This disc suits residential shop work, commercial fabrication, and field metalwork alike. It performs well on structural steel, weld bead removal, and surface conditioning tasks where a flat or slightly angled grinder position is used. The 7-inch diameter covers more surface area per pass compared to smaller discs, reducing cycle time on larger workpieces. It is sold individually but requires a minimum order quantity of 10 units.

Key Features

• Type 29 angled flap geometry for flat and contoured surface grinding and blending
• Zirconia alumina abrasive provides aggressive stock removal and extended disc life
• 36-grit very coarse grade for fast material removal on steel and weld seams
• Cloth backing resists tearing and supports heavy-pressure grinding passes
• 8,600 RPM maximum speed rating for use with standard 7-inch angle grinders
• 5/8-11 arbor attachment fits the most common angle grinder spindle size

Compatibility

Designed for use with 7-inch angle grinders equipped with a 5/8-11 spindle thread. Verify that the grinder's rated no-load RPM does not exceed 8,600 RPM before mounting this disc.

Installation Notes

A licensed or qualified metalworker should mount and operate this disc following ANSI B7.1 safety standards for abrasive wheels. Disconnect power from the grinder before installing or removing the disc, and confirm the spindle nut is tightened securely before starting the tool. Always wear a full face shield, hearing protection, and appropriate PPE when operating angle grinders. Do not use this disc on a grinder with a higher RPM rating than the disc maximum.