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

  • Published on: 11 March 2019
  • Flap discs tested: 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
  • project farm dewalt metal cutoff wheel lenox 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 abrasive wheel sanding disc sandpaper disc flap disc paint removal flap disc vs grinding disc flap wheel flap sanding wheel


  • Jared Wynstra
    Jared Wynstra   9 hours ago

    What im learning is if i ever need tools is to get milwaukee or diablo and that dewalt is trash in most cases

  • Mr. Greenpump
    Mr. Greenpump   12 hours ago

    Hello-----Well, once again I need to bring you up to speed concerning Harbor Freight. I am going into my Harbor Freight store this Friday with a coupon for Warrior 36 grit, 4&1/2 inch flap disc for $1.00 EACH with a limit of 5. I will be using this same coupon TWICE in the next few weeks for a total of 10 at $1.00 each. I have been using these flap discs for YEARS and I can testify that each one lasts for a very long time. Your tests don't reflect actual usage and wear and you need to learn to buy at the right price to save money. Also, you can use these for wood sanding and then they last for a very, very, very, very long time. Just so that you know.-----Lynn

    HIGHLAND DRAGON   3 days ago

    I use the warrior brand flap disk to sharpen mower blades or weed cutter blades I sharpen once a month and I go through only one disk per mowing season that's 2 rider blades 1 push mower blade and 2 weed cutter blades.

  • northerniltree
    northerniltree   3 days ago

    All flap discs suck. They are good for the first few minutes, but then wear out quickly. A 75% "intact" disc is garbage. At $5.00 to $8.00 each, that's an expensive pile of worn discs in no time. Thereal insult though, is that 90% of the abrasive remains hidden under each exposed section of flap; you just can't use it.

  • philliphaessig
    philliphaessig   4 days ago

    Place near me has the dewalt wheels for $3.99 so I will stick with them till they stop selling them. Then try the diablos.

  • That Guy
    That Guy   4 days ago

    3 Walter Enduro-Flex flap disc ads came up during this video.

  • Janes Fair
    Janes Fair   4 days ago

    Got an ad for Walter flap disc Coincidence hum 🤔

  • mercoid
    mercoid   4 days ago

    You are the man who puts tools and products to the test

  • Robert Heinkel
    Robert Heinkel   5 days ago

    My biggest issue with the disks, are the thickness. Some are so thin, they won't tighten properly, without an additional spacer.

  • InConsulting
    InConsulting   6 days ago

    Have you thought about testing skill saw blades, lot of contraversy about diabolo vs dewalt, etc.

  • Ron D
    Ron D   6 days ago

    I buy the H.F. Warrior discs, as they go on sale for 99 cents often. At that price, I can have fresh sharp edges 6-9 times more often than the expensive brands. I'm not a production shop, so the 30 seconds to change wheels doesn't matter.I do love P.F. for all his tests though. Keep up the great work.

  • Erik Strawn
    Erik Strawn   1 weeks ago

    I just ordered flap wheels a couple days ago, and I didn't have a clue what was good. I've been using Warrior because they come in a pack with cutoff and grinding wheels, but I knew they weren't good, seeing as they're HF's least expensive. I considered buying DeWalt, but I found a recommendation for Lehigh Valley Abrasives flap wheels. Supposedly they're far better than Warrior and only $2 each. I'm probably getting what I paid for, but I decided to give them a try. If they don't work out, I'm going for Diablo wheels. Thanks for the unbiased video!

  • Ricopolico
    Ricopolico   2 weeks ago

    Why didn't you include what many users consider to be the gold standard in abrasives, 3M?

  • 2010stoof
    2010stoof   2 weeks ago

    3m cubitron are awesome. pricey but awesome

  • Mike Dorman
    Mike Dorman   3 weeks ago

    You can get the Warrior right now for 99 cents.....You can get 3 or 4 and maybe more for the price of the others...how does that weigh in?

  • Hotspur
    Hotspur   3 weeks ago

    Oh and how do ceramic discs compare?

  • Hotspur
    Hotspur   3 weeks ago

    $9.00 for a Dewalt disc? Is it really a fair test of value when the price is wrong? I paid around $5.00 per disc at a box store. Amazon offers them for a little more.

  • Rock Fish
    Rock Fish   3 weeks ago

    Do you have a job other then this?

  • Bill Sells
    Bill Sells   3 weeks ago

    That is your craziest contraption yet. Are you related to Wile E. Coyote, or is he at least a guest at at Thanksgiving Dinner?

  • Lexicon Devil
    Lexicon Devil   4 weeks ago

    I like Diablo stuff in general for the longevity

  • Mighty Orb
    Mighty Orb   4 weeks ago

    Showing $/gm metal removed and $/sanding disk weight loss would have been interesting. Great video!

  • Krankie V
    Krankie V   1 months ago

    Any flap wheel I've ever used seems to stop cutting long before the sandpaper material appears to be worn down. They have their place I guess, but rusty metal cleaning seems to ruin them very quickly. They seem to last much longer grinding on cleaner metal

  • VB
    VB   1 months ago

    Good video, but you left out Metabo. Although they're work provided, we pretty much prefer their Type 29 cupped design for general weld prep and paint/powder coating removal. I never really considered a flap wheel to be the right tool to go after deep rust or mill scale. We use the Metabo in 40 and 60 grit, I sometimes get a full day or more out of one disc. I know they're pricey but like I said, work supplies them and they have a good wholesale source i suppose. As for the Warrior flap discs, they're not that bad if used for just paint removal and light sanding, they're more for polishing and clean up than for metal removal. Plus, with the right coupon, and a sale, I've gotten them for as little as $1.99 each. (Pack of 10/$9.99). I haven't seen the 10 pks lately, but I stocked up on them a few years ago when they had the 25% off coupon for one holiday sale. The Warrior discs cannot take as much pressure as the Metabo discs, but they do work for what I use them for. If I need to remove metal, I go to a grinding wheel.

  • mcshaunable
    mcshaunable   1 months ago

    I came across your reviews by accident and I have now watched most of your videos. I even watch the ones I would never have anything to do with or use the product but just enjoy watching. I know, for me, I have learned a lot. Don’t ever let the big brands buy out your ethical and honest opinions. Keep up the great work! Thanks again for the great content!

  • bill chiasson
    bill chiasson   1 months ago

    3M cubitron II 40 grit is the best hands down!

  • Pileits
    Pileits   1 months ago

    Thanks for all those things you test. I appreciate your efforts, good job thanks

  • Feuby
    Feuby   1 months ago

    Your channel is just awesome. When i'm bored, i'm just "let's watch PF, to know which is the best tool i'll probably never use". I juste hope some day I'll be able to do like at least half of what you're doing just to improve things in my house. At least, you do your best to help me doing that with the good tools, providing almost scientific and reproductible experiments.

  • Jason The Mobile Mechanic

    Hey man I have a small time mobile mechanic business. I use allot of products you test and pass on the knowledge to my customers. I have been trying to get into the YouTube world but I am terrible at it lol. People don’t realize how much time goes into making videos, editing, etc. I basically started my business from nothing about 3 months ago. I use Facebook to market and get most of my work from there but I know getting on YouTube is the way to go. I was just wondering if you had any tips or suggestions on how I can get myself out there. I don’t really have the extra money for nice equipment so I make due with what I have. You started from nothing and I have been watching your channel for awhile now, I would greatly appreciate any advice you may be willing to share. You always are saying you read every comment so I figured it was worth a shot. Thanks!

  • Sheila Mclaughlin
    Sheila Mclaughlin   1 months ago

    If u r going to clean that much rust use a stone and polish with the pad

  • wkellander
    wkellander   1 months ago

    I’d love to see the amount of torque it takes to twist (break) different brands of Allen wrenches.

  • bendall2006
    bendall2006   1 months ago

    This is a great test! I would love to see another one done with Roak, Bench mark, and leigh valley abrasives included!!!

  • Anthony Penza
    Anthony Penza   1 months ago

    I would like to see a test on aluminum as it clogs up the disc faster than mild steel. Appreciate all the testing. Very thorough and informative.

  • idontwantachannel
    idontwantachannel   1 months ago

    Currently using $1.99 flap disks from LehighValleyAbrasives.com I didn't expect them to be in this test because they don't advertise, I can't even remember how I heard of them.🤷‍♂️

  • Jeff Lee
    Jeff Lee   1 months ago

    Well, I wanted to find out the best flapper disks to use . . . and got a great lesson. And yes, I am not surprised about the Dewalt outcome. Overpriced.

  • Bob Shawn
    Bob Shawn   1 months ago

    Excellent testing analysis. Genius idea the way you test

  • Mark Shymanski
    Mark Shymanski   1 months ago

    If you have not yet done cold cut saws I would be greatly interested to see how the Oslun 10" blades hold up to the Evolution blades and any others out there. In the same vein cutoff wheels would be another interesting test. I received some trial 3M disks but have yet to try them out.