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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.
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.
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.
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/
InstagramI 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…
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.
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.
You have confirmed my suspicions. This mumbo jumbo they have pulled has eliminated Dewalt from buy list. I don’t like chicanery and subterfuge.
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:
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” frameborder=”0″ allowfullscreen=””></iframe></figure>
Nice, the DDS182 actually has higher soft torque than 181 despite much lower (hard) rating we have here.
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.
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, NCWhat 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.
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/
InstagramOh 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.
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
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
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/
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