Which Flap Disc is Best? Let's find out!

  • Published on: 11 March 2019
  • Always delivering 100% unsponsored content, I bought all the flap discs tested used in this video. The brands tested include: Harbor Freight Warrior, DeWalt, Makita, Walter Flex Steel, Diablo, and Norton Red Heat. A rusty piece of sheet metal was cut into 6 pieces. Each flap disc was provided 2 opportunities for a total of 3 minutes to remove as much rust as possible. The sheet metal was weighed before and after each timed event to figure out how much rust and metal was removed. 100% of the video ideas are from viewers. I greatly appreciate all the support that viewers provide, allowing the channel to deliver unsponsored, unbiased, content!
    Thank you very much for supporting the channel by watching the commercials and through Patreon support. https://www.patreon.com/projectfarm

    This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results. Project Farm LLC
  • Runtime : 11:10
  • Seafoam marvel mystery oil marvels marvel mystery oil seefoam Sea foam cracked cylinder project farm dewalt metal cutoff wheel lenox warrior harbor freight warrior makita milwaukee diablo cut-off wheel metal cut-off wheel best angel grinder disk norton blaze norton blaze vs 3m cubitron who makes the best grinder metal grinder tool metal cutting tool review metal cutting tool hack norton sandpaper flap disk flap disc walter norton red heat


  • Larry B
    Larry B   6 days ago

    I'm curious as to WHY the disks took so much less material off on the second tests? Do you think it was the pressure, or were the disks already that very much worn down from the first tests?

  • TheBossOfBread
    TheBossOfBread   1 weeks ago

    HiCould you maybe do a test with these and run them for an extended period of time like 5/10 minutes. Thanks

  • Adventures at Home
    Adventures at Home   3 weeks ago

    Can you do a video on 10 inch circular saw blades for a table saw? These blades vary greatly in price? Which one is best for the money?

  • jhsplaya
    jhsplaya   3 weeks ago

    Why was the first HF Warrior test spinning so slowly?

  • pocketowo
    pocketowo   3 weeks ago

    This is what happens if jig saw went down a happier path

  • Pro1er
    Pro1er   3 weeks ago

    Another great test. The Norton was a bit of a let down. If you do another test in the future, can you consider adding Benchmark Abrasives to the test? Also, perhaps some ceramic discs?

  • Pro1er
    Pro1er   3 weeks ago

    Another great test. The Norton was a bit of a let down. If you do another test in the future, can you consider adding Benchmark Abrasives to the test? Also, perhaps some ceramic discs?

  • Julian 7160
    Julian 7160   1 months ago

    I’d buy the diablo for the price and work it does seems like the best value

  • king ofdead
    king ofdead   1 months ago

    You are by far the best @ these comparison videos. No unnecessary banter that doesn't pertain to the video. Straight to business right out of the gate. Some of these people feel like they have to tell us what the weather is like where they are at, what they had for breakfast, etc. etc. blah blah blah. Who cares!? I dont. Well done sir!

  • Darkcruzer23
    Darkcruzer23   1 months ago

    the diablo may be better overall because like you mentioned in another video, changing out parts saves time and gets more work done. however the makita seems to be the best value for work done. and as another person mentioned i appreciate that you test harbor freight items

  • ImConstantlyConfused
    ImConstantlyConfused   1 months ago

    I don't use a lot of flap discs and only have experience with DeWalt and wonder if they have changed their product or are having a quality control issue. I had a disc that I used off and on for 2 full years, sharpening lawn mower blades or cleaning up welds. That one disc just kept going and going. When I finally needed a new one, I wanted another amazing quality DeWalt, but that sucker lasted less than 10 minutes before wearing out. I know it's only a sample size of 2, but the last one was so bad, I don't want to give them any more of my money.

  • Jon Mantooth
    Jon Mantooth   1 months ago

    Im in Auto Tech School I like watching your videos. I need this to get rust off my truck bed. This is great information.

  • Josh Beatty
    Josh Beatty   1 months ago

    Thanks for spending money and time to make these videos for us. I really feel like you're the type of honest dude that can't be bought, and I appreciate your integrity in keeping things consistent in a real-world, "average Joe" setting.

  • Snorri Ö.K.
    Snorri Ö.K.   1 months ago

    The first test compared to the second just shoes that the user should let the disc work, not his hand because adding pressure only destroys the disc faster and it applies to grinding and cutting discs as well.

  • Ohio Till I die
    Ohio Till I die   1 months ago

    This dude has no problem showing what companies are frauds and liars like this dude embarrasses companies and shows what good companies are

  • Harry A
    Harry A   1 months ago

    Great video project farm,.keep it up

  • editedtea 01
    editedtea 01   1 months ago

    Drill speed was a little off next time if you need a jig set up you should try and pull the battery from the drill instead of taking the zip tie off but amazing video still

  • Chris Brenan
    Chris Brenan   1 months ago

    Looked like Diablo to me. I would point out that the warrior wheels often have a coupon to get them for $1.50, and I've picked them up at $1 each before. Thanks for doing such excellent testing!

  • Andy Solomons
    Andy Solomons   1 months ago


  • Aaron Powell
    Aaron Powell   2 months ago

    Awesome! I was wandering about the quality of diablo flap discs, as they're the easiest and fastest to get ahold of in my town.

  • Tobias Johansson
    Tobias Johansson   2 months ago

    Very good test. Would also have been interesting to see the weightloss of discs through.

  • 20Bailey Osborn
    20Bailey Osborn   2 months ago

    Not to be rude, but you didn’t let the grinder ramp up then set it on the material

  • p71collector
    p71collector   2 months ago

    A lot of people must of watched this because my local Harbor Freight was almost sold out of the Warrior 36 grit discs! I got 'em cheap for $1.49 each (limit 5) with the coupon.. Excellent comparison video Project Farm!

  • roy reynolds
    roy reynolds   2 months ago

    you should test sand paper for belt Sanders

    BIKE BINDERZ   2 months ago

    Great test, when your the one buying the consumables Walter is a great choice, trim back the edge and leave 1/4 inch flapper exposed and you can blend steel again and again.

  • Anton Mgushi
    Anton Mgushi   2 months ago

    Thanks for these videos. Very interesting stuff. How do you have time to do all these tests? Especially if you’re not sponsored or paid by any of these companies. This is awesome to know.

  • Art J.
    Art J.   2 months ago

    could you do another test comparing some of the amazon disks. Thx.

  • lbdeuce
    lbdeuce   2 months ago

    you are raising the bar for youtube content my dude. thank you.

  • H Higgins
    H Higgins   2 months ago

    How about comparing sandpaper. I have mixed feelings about HFT products, but one thing I will never recommend of theirs is their sandpaper. It doesn't seem to last even a minute before all the grit is gone.

  • Brandon Eubanks
    Brandon Eubanks   2 months ago

    Great video as always. You put a lot of effort in and get excellent real world results.As far as this video goes, I would have liked to have seen the weights of the wheels after the second test. That would have given a good quantitative view of the amount of material lost.For a video idea, how about testing spray foams. Matt Risinger did a quick experiment on his channel showing the added structural value of spray foam. Perhaps you could test insulative capacity, adhesion, added rigidity, and usability.

  • Adolf Hitler
    Adolf Hitler   2 months ago

    I buy makita tools and i buy diablo expendables

  • Nate Maia
    Nate Maia   2 months ago

    I really like freud and their diablo brand, the circular blades are unmatched.

  • James Doane
    James Doane   2 months ago

    Hes never used an angle grinder, has he?

  • vanwhalen13
    vanwhalen13   2 months ago

    I think you videos are well put together and simple to follow. I would like to see a comparison of the flap disc to the hard wheel as far as cost to material removal rate. Which is the better use of time and money.