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UWO

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  • #364672
    jdw1865
    Pro
    Dewey, OK

    I was comparing drivers today at the store. All was well until I got to the 12v Dewalt tools. They don’t use in-pounds or ft-pounds they use unit watts output UWO. Near as I can tell you have to have quantum physics, calculus, and calculus degrees to convert from UWO to in-pounds. Anybody have an easy approxomation? Oops there is that calculus again.

    #364681
    Doobie
    Moderator

    I was comparing drivers today at the store. All was well until I got to the 12v Dewalt tools. They don’t use in-pounds or ft-pounds they use unit watts output UWO. Near as I can tell you have to have quantum physics, calculus, and calculus degrees to convert from UWO to in-pounds. Anybody have an easy approxomation? Oops there is that calculus again.

    This is actually not something new at Dewalt.

    http://www.toolsofthetrade.net/best-practices/new-power-standard.aspx

    That was in 2006.

    Now, they’re looking to use MWO. (Maximum Watts Out)

    http://www.protoolreviews.com/buying-guides/max-watts-out/13109/

    This is largely probably designed to confuse their audience. DEWALT is good at that.

    #364682
    jzmtl
    Pro
    Montreal, QC

    You can tell from the title of the article it’s all BS.

    “DeWalt implements new performance standard”

    Yeah, because industry standard is always made by one company came up with some stuff and go ahead to use it itself.

    I’ve read somewhere that it’s a 1 to 1~1.5, just people’s estimation, nothing official obviously.

    #364696
    jponto07
    Moderator
    Bloomington, IN

    Yeah…what the heck is a UWO? It sounds like Dewalt is pulling their 20v scheme all over again. Just another reason to buy elsewhere.

    Jon P.
    Timber Carpentry & Construction
    https://www.facebook.com/timbercarpentry/
    Instagram

    #364703

    I believe if you check Dewalt Europe’s pages, they list the torque spec in a similar fashion to what Bosch does in Europe where “hard” (Motor stalled) and “soft” (Motor under load) torque are listed instead of the highest number (Typically hard torque) in the US.

    Not to say that companies can’t cheat the torque spec either by optimizing a tool with the right gearbox reduction ratio to get a number always higher than their competitors with a little fudging. Great for demonstration rigs…

    #364708
    kurt@welkerhomes.com
    Moderator
    Owatonna, MN - Minnesota

    It is a term Dewalt has devised so you cannot compare their tools to others.

    #364714

    Looks like they share the model numbers between the North American and European lines:
    http://www.dewalt.com/tools/cordless-drills-drilldrivers-dcd790b.aspx
    http://www.dewalt.co.uk/powertools/productdetails/catno/DCD790P2/info/specifications/

    They just drop the torque spec from the US page.

    #364723
    jzmtl
    Pro
    Montreal, QC

    I believe if you check Dewalt Europe’s pages, they list the torque spec in a similar fashion to what Bosch does in Europe where “hard” (Motor stalled) and “soft” (Motor under load) torque are listed instead of the highest number (Typically hard torque) in the US.

    Not to say that companies can’t cheat the torque spec either by optimizing a tool with the right gearbox reduction ratio to get a number always higher than their competitors with a little fudging. Great for demonstration rigs…

    True, DDS181 is listed with 600 in.lb but it feels lower while in use.

    #364752
    jdw1865
    Pro
    Dewey, OK

    You have confirmed my suspicions. This mumbo jumbo they have pulled has eliminated Dewalt from buy list. I don’t like chicanery and subterfuge.

    #364763

    @jzmtl

    I believe this is the European version of the DDS181
    http://www.bosch-professional.com/gb/en/gsr-18-v-li-33389-ocs-p/

    And this is the DDS182 (With “suspiciously lower hard torque” specs that I think are deceptive)
    http://www.bosch-professional.com/gb/en/gsr-18-v-ec-34799-ocs-p/

    A while back I remember reading someone was really concerned about the PS22/32’s drop in max torque spec compared to the brushed versions. I thought that was interesting since the PS22 was able to drive those bolts in the video* I linked in another topic where the predecessor brushed models couldn’t. If you look at the specs on the European PS22:
    http://www.bosch-professional.com/gb/en/gsr-10-8-v-ec-hx-34342-ocs-p/

    Its actually much better than the US specs would lead people to believe, the hard torque and soft torque is effectively almost the same, 20 to 18nm. The Dewalt DCD790 only pushes 23nm on the soft torque side… Still the Dewalt would probably push start a bit that stalls the tool out, but the PS22/PS32 effectively is near equal in driving capability. All while it has 2/3rds the soft torque of the some of the older Bosch brushed drills.

    *Video mentioned was this:

    #364779
    jzmtl
    Pro
    Montreal, QC

    @jzmtl

    I believe this is the European version of the DDS181
    http://www.bosch-professional.com/gb/en/gsr-18-v-li-33389-ocs-p/

    And this is the DDS182 (With “suspiciously lower hard torque” specs that I think are deceptive)
    http://www.bosch-professional.com/gb/en/gsr-18-v-ec-34799-ocs-p/

    A while back I remember reading someone was really concerned about the PS22/32’s drop in max torque spec compared to the brushed versions. I thought that was interesting since the PS22 was able to drive those bolts in the video* I linked in another topic where the predecessor brushed models couldn’t. If you look at the specs on the European PS22:
    http://www.bosch-professional.com/gb/en/gsr-10-8-v-ec-hx-34342-ocs-p/

    Its actually much better than the US specs would lead people to believe, the hard torque and soft torque is effectively almost the same, 20 to 18nm. The Dewalt DCD790 only pushes 23nm on the soft torque side… Still the Dewalt would probably push start a bit that stalls the tool out, but the PS22/PS32 effectively is near equal in driving capability. All while it has 2/3rds the soft torque of the some of the older Bosch brushed drills.

    *Video mentioned was this:

    <figure class=”oe-video-container”><iframe width=”770″ height=”433″ src=”https://www.youtube.com/embed/GMbldA7CDgU?feature=oembed&wmode=opaque&#8221; frameborder=”0″ allowfullscreen=””></iframe></figure>

    Nice, the DDS182 actually has higher soft torque than 181 despite much lower (hard) rating we have here.

    #364947
    r-ice
    Pro
    Durham region, ON

    You have confirmed my suspicions. This mumbo jumbo they have pulled has eliminated Dewalt from buy list. I don’t like chicanery and subterfuge.

    yah but their target market is the uninformed, as long as someone can’t compare it, they’ve got their fish.

    #364951
    theamcguy
    Pro
    Fayetteville, NC

    What a load of crap. Everybody knows foot pounds why not just keep using them? They are hiding something by coming up with a confusing spec.

    Automotive Pro
    Fayetteville, NC

    #364955

    What a load of crap. Everybody knows foot pounds why not just keep using them? They are hiding something by coming up with a confusing spec.

    Yes sir, you said it, I was lost from the get go old school, give me foot pounds, or even inch pounds, I will convert it myself.

    #364969
    jponto07
    Moderator
    Bloomington, IN

    What a load of crap. Everybody knows foot pounds why not just keep using them? They are hiding something by coming up with a confusing spec.

    Dewalt is loosing ground and they need to trick people into buying their “powerful” tools…

    I’d say 90% of people around here think Dewalt is the Ferrari of power tools. I’d consider them a Tercel…

    Jon P.
    Timber Carpentry & Construction
    https://www.facebook.com/timbercarpentry/
    Instagram

    #365102
    jzmtl
    Pro
    Montreal, QC

    Oh come on, they are not that bad, there are a couple of things from Dewalt I would like. 😀

    #365115
    Doobie
    Moderator

    Oh come on, they are not that bad, there are a couple of things from Dewalt I would like. 😀

    I just bought a while ago their 10in wet tile saw at a price I couldn’t resist versus saving my piggies for the Bosch one on the prize list. Based on extensive research, that one is a winner.

    #365191
    BryanT
    Blocked
    Lake Ariel, PA

    In my humble opinion the tool manufacturers use new/different units like UWO or MWO simply for a reason to make their product ratings look better next to competitors’ offers. And to confuse the heck out of consumer of course.

    BryanT

    #365240

    What a load of crap. Everybody knows foot pounds why not just keep using them? They are hiding something by coming up with a confusing spec.

    Yup, keep it consistent and easy to compare

    #365281
    jponto07
    Moderator
    Bloomington, IN

    In my humble opinion the tool manufacturers use new/different units like UWO or MWO simply for a reason to make their product ratings look better next to competitors’ offers. And to confuse the heck out of consumer of course.

    Seems to be a pattern with Dewalt. For some reason get are allowed to do so. Seems like false advertising to me…trying to intentionally mislead people.

    Jon P.
    Timber Carpentry & Construction
    https://www.facebook.com/timbercarpentry/
    Instagram

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