Norton 66261183498 Flap Disc 36 Grit Type 29 7 Inch

Product Description

The NORTON 66261183498 is a Type 29 flap disc engineered for aggressive material removal on metals including steels, stainless steel, and titanium. Built on a fiberglass backing plate, it carries 36-grit zirconia alumina abrasive flaps arranged at an angle to deliver a consistent, high-stock-removal cut at up to 8,500 RPM. The Type 29 conical geometry keeps a larger surface area in contact with the workpiece compared to a flat Type 27 disc, making it well suited for weld blending, surface prep, and edge work. Licensed trades and fabrication professionals reach for this disc when speed and durability on hard metals are the priority.

This flap disc is designed for use on 5/8-11 threaded angle grinders, the standard spindle size on 7-inch grinders common in metal fabrication shops, structural steel erection, pipeline work, and shipyard environments. The R980P series zirconia alumina abrasive self-sharpens as it wears, sustaining cut rate through the life of the disc. It is rated for steels, stainless steel, and titanium, making it a practical choice wherever ferrous and non-ferrous hard metals require blending, grinding, or surface conditioning at very coarse material removal rates.

Key Features

• Type 29 conical flap geometry for aggressive stock removal and weld blending on contoured and flat surfaces
• 36-grit zirconia alumina abrasive rated Very Coarse for fast material removal
• 5/8-11 threaded arbor hole fits standard 7-inch angle grinder spindles
• Fiberglass backing plate resists flex and heat buildup during extended grinding
• Rated to 8,500 RPM maximum operating speed
• R980P series self-sharpening abrasive sustains cut rate through disc life on steels, stainless steel, and titanium

Compatibility

Designed for use with 7-inch angle grinders equipped with a 5/8-11 threaded spindle. Rated material applications include steels, stainless steel, and titanium.

Installation Notes

Installation and operation of flap discs should follow ANSI B7.1 safety standards and the grinder manufacturer guidelines. Always confirm the grinder free-speed RPM does not exceed the 8,500 RPM disc rating before mounting. Power down and disconnect the grinder from its power source before mounting or removing the disc. Wear appropriate PPE including eye protection, face shield, and gloves during operation.