3M 7100177972 Flap Disc 769F 5 Inch 120 Grit Type 29

Product Description

The 3M 7100177972 is a Type 29 coated flap disc designed for grinding, blending, and surface preparation on metal. Built around 3M Precision-Shaped Grain, this 5-inch, 120-grit disc cuts faster and lasts longer than conventional aluminum oxide and alumina zirconia flap discs. Rated at 12000 RPM, it is well suited for angle grinder use in demanding fabrication and finishing environments. Individual flaps break down progressively during use, continuously exposing fresh abrasive mineral to maintain a consistent cut rate from first contact through the life of the disc. Licensed trades and metal fabricators rely on this disc for everyday productivity at a controlled abrasive cost.

The 769F flap disc is designed for use on carbon steel, stainless steel, and other heat-sensitive alloys. It covers a wide range of metalworking tasks including weld grinding, beveling, deburring, and general surface prep. The Type 29 angled flap geometry increases surface contact on flat and contoured workpieces, making it practical for both production and maintenance applications in fabrication shops, field pipework, and structural steel environments.

Key Features

• 3M Precision-Shaped Grain delivers faster cut rates and longer disc life compared to conventional aluminum oxide and alumina zirconia grains
• Progressive flap breakdown exposes fresh mineral continuously, maintaining consistent material removal throughout disc life
• Type 29 angled design increases contact area on flat and contoured surfaces
• Suitable for carbon steel, stainless steel, and heat-sensitive alloys
• Covers weld grinding, beveling, deburring, and surface preparation in a single disc
• Rated to 12000 RPM for use with standard angle grinders

Compatibility

Designed for use with standard 5-inch angle grinders accepting Type 29 flap discs. Suitable for metal grinding and finishing applications on carbon steel, stainless steel, and heat-sensitive alloys.

Installation Notes

Installation and disc changes should be performed by a qualified operator following the grinder manufacturer's guard and flange requirements. Always verify the grinder's rated RPM does not exceed the disc's 12000 RPM maximum before mounting. Power down and disconnect the grinder from its power source before changing discs. Wear appropriate PPE including eye protection and gloves during disc installation and operation.