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3M™ Flap Disc 769F

51  Products
  • Delivers long-lasting high performance and versatility at a value price
  • Contains 3M Precision-Shaped Grain, which cuts faster and lasts longer than conventional abrasive grain
  • Proven to outperform traditional alumina zirconia flap discs
  • Individual flaps break down, exposing fresh mineral to deliver consistent cut rate for the life of the disc
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Overall Diameter (Imperial)
Center Hole Diameter (Imperial)
Attachment Type
Equipment - Machines
51 Products Available
Available options:
 Overall Diameter (Imperial), Center Hole Diameter (Imperial), Attachment Type, Equipment - Machines and Grit
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Attribute Name
Abrasive Material
Precision Shaped Ceramic
Beveling & Back Gouging, Deburring, Finishing, Sanding, Surface Preparation, Surface Preparation for Painting, Weld Grinding, Weld Preparation
Attachment Type
Backing Material
Fiberglass, Plastic, Polyester
Backing Weight
YF Weight
Bonding Type
Center Hole Diameter (Imperial)
0.875 in
Center Hole Diameter (Metric)
22.225 mm
Center Hole Thread Size
Coat Type
Open Coat
Disc Type
T27, T29
Equipment - Machines
Disc Grinders, Disc Sanders, Right Angle Grinders
For Use On
Aluminum, Carbon Steel, Stainless Steel
120+, 40+, 60+, 80+
Maximum Speed
12000 rpm, 13300 rpm, 8600 rpm
Overall Diameter (Imperial)
4.5 in, 5 in, 7 in
Overall Diameter (Metric)
114.3 mm, 127 mm, 177.8 mm
Product Form
Flap Disc
Conical, Flat
Aluminum, Carbon Steel, Stainless Steel
Product Details
  • Delivers long-lasting high performance and versatility at a value price
  • Contains 3M Precision-Shaped Grain, which cuts faster and lasts longer than conventional abrasive grain
  • Proven to outperform traditional alumina zirconia flap discs
  • Individual flaps break down, exposing fresh mineral to deliver consistent cut rate for the life of the disc
  • Ideal for use on carbon steel, stainless steel and other heat-sensitive alloys
  • Covers a wide range of applications from weld grinding and beveling to surface prep

3M™ Flap Disc 769F is a high-performance abrasive disc built for versatility and value. Powered by 3M Precision-Shaped Grain, it lasts longer and cuts faster than conventional aluminum oxide and alumina zirconia flap discs – and it’s priced for affordability and everyday use. This unbeatable combination of performance and value can increase productivity while also lowering your abrasive spend.

Value-priced Performance with Built-in Versatility
3M™ Flap Disc 769F is a long-lasting, versatile abrasive disc that includes all the advantages you expect from a flap disc, including conformability and ease of use with a lower risk of gouging. Featuring 3M Precision-Shaped Grain and a durable polyester backing, 3M™ Flap Disc 769F lasts long and holds up strong to high-pressure applications like beveling, weld grinding and edge deburring. Plus, it leaves a finish that makes it a great choice for applications like blending and surface prep.

Powered by 3M Precision-Shaped Grain
The 3M™ Flap Disc 769F features a blend of 3M Precision-Shaped Grain – our proprietary grain design that continually fractures into sharp points that slice cleanly through metal, unlike traditional abrasives which tend to plow through the substrate. This fracturing helps our 3M™ Flap Disc 769F last long and maintain a high cut-rate over the life of the disc.


  • Weld grinding
  • Beveling
  • Edge deburring
  • Blending
  • Finishing
  • Surface preparation
  • Scale removal
  • Weld spatter removal

Tech Tip:
In many cases, 3M™ Flap Disc 769F will allow you to grind and finish in one step, without changing abrasives. This is because, under normal conditions, 769F will generate a finish that is one grade finer than a fiber disc of the same grade. While a fiber disc will cut faster, this flap disc can eliminate steps and disc change-outs to help save you time.

Customer Reviews
3M™ Flap Disc 769F is rated 4.9 out of 5 by 14.
Rated 5 out of 5 by from Amazing product Used this product a lot. Long life and took a lot of material off when I wanted. Left a clean finish.
Date published: 2019-05-15
Rated 5 out of 5 by from Great product It save me a lot's of time and trouble Workin on my projects
Date published: 2019-04-02
Rated 5 out of 5 by from All around great flap disc This flap disc offers both fine finishing and fast removal in one. It knocks material down quickly and efficiently. I use it to round shar edges after shearing material.
Date published: 2019-03-29
Rated 5 out of 5 by from My New Go To Used to remove mill scale and grind a bunch of welds flush. These did the job quicker than the typical equivalent flap discs I'd pick up but left a significantly better surface finish and I felt like I had more control over how much I was removing. I could dig in and gouge into the metal or I could delicately remove high spots without anything ever grabbing or slipping up and taking a bite out of the base metal. Mostly, they left a really nice finish. I was just painting this project, but I'd have taken some 320 to grain the piece and been perfectly happy otherwise.
Date published: 2019-03-27
Rated 5 out of 5 by from Great flap wheel In our shop we use all sorts of different flap wheels. This wheel was by far one of the best we have used, it quickly removes a lot of material and it’s life span is much longer then we had expected.
Date published: 2019-03-15
Rated 4 out of 5 by from Great threaded center section I really like the threaded center section, no more looking for wrenchs to tighten discs
Date published: 2019-03-15
Rated 5 out of 5 by from Great product Worked better than any other flap disc I’ve used. Knocks beads down faster with a more consistent finish and the thread on feature is a great bonus!
Date published: 2019-03-14
Rated 5 out of 5 by from What an awesome disc Finishing work on a BBQ pit. The disc cuts quick and finishes awesome. I am so glad I tried these. Definitely gonna order more of these.
Date published: 2019-03-14
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Large Volume Order

If you are considering a large purchase of this or other 3M Abrasive products our inside sales team is ready to help by providing additional information and options that our industrial customers typically seek when making abrasive procurement decisions. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we’ll do our best to prove that we should be your abrasive supplier of choice.

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