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first of all (1,950-Inch/lbs ) torque should read (1,950-lbs/Inch ),which = (162.5 Lbs/Ft), so with the no load (2600-RPMs)u should be getting (80.5) HP , so u should be getting any where from (55-75)HP with hands full of load which should be enough to loosen most of the par torqued nuts , I gave it 5 cuase i had experience with hitachi impact drive , it's great , well done hitachi, BTW why didn't hitachi concider the brushless motor wrench , it would have been great , specialy that the brushless ones out perform the carbon brush motors with at least (12-18)% in total power and energy saving as wellthanks for Amazons GREAT JOBE
It seems to have this plus some. The Dewalt cordless impact has 300 ft-pounds at $299, but it continues to use the outdated Nicad batteries.in the heat where I live, these fail rapidly and you spend a fortune replacing them every year. The specs say it's only 1950in-pounds, or 162ft-pounds. Don't let the size of this tool trick you. If your wheel lugs are not seriously coroded and neglected, this tool seems to have the muscle to take them off. It's $400 w/ two batteries.
Ingersol Rand makes a great cordless with Lithium batteries at 350 ft-pounds.
For seriously stubborn tasks, a large and heavy electric may be necessary or a pneumatic impact for the ultimate torque, but for 98% of what I do messing with my Jeeps and lawn tractor blade changing etc, this is a super convenient, small, lightweight powerhouse.
And, most of these tools are HEAVY.
This fanstastic little powerhouse removes the wheel lugs on my trailer and SUVs rapidly.
I looked at more powerful plug-ins, all above the $150 range have great torque (like the Dewalt:340 ft-pounds at $179), but you'll have to run that power cord to your task.
(and I don't have to move my compressor, or run super long air lines to my work).I shopped for a long time before buying this.
There are heavier impacts.
My plan is to use this lightweight powerhouse for most of my chores, and when I need super torque, either hit the task with a 24 inch breaker bar, or breakdown and get a corded electric.
It's so small, it's almost fun to see this tool remove the lugs so easily.
I use this almost everyday for work. In over a year it has never been a problem. Both batteries still hold a charge with no problems.
Have had impact wrench for few weeks. It is very light and the battery's hold charge very well. The work light is a nice option.Works well to disassemble engine parts etc.The only possible negative is it has a tough time with wheel nuts. However it really is not rated as high a tork range as a air impact.Overall meets all my expectations.
Since Ryobi uses manganese Li-Ion, this is no great hardship. Manganese Li-Ion only lasts 300-500 cycles - same as NiCd and NiMH.
I plan on keeping this lightweight bulldog in my trunk at all times for just that purpose.One thing about Hitachi Li-Ion tools that gets overlooked is their battery technology. Got the WR18DL today and it promptly took a lug nut that was torqued to 80ft/lb off my Maxima - in about 5 seconds.
This technology allows the cycle-life of these batteries to be tripled over the standard manganese (Milwaukee and pretty much everyone else uses this) to 1000-1500 cycles. All Li-Ion batteries are not alike.
Hitachi uses the same nano-phosphate formula that DeWalt uses. You will need new batteries a lot less often with Hitachi and DeWalt as a result.I really wish that Ryobi would adapt their One+ impact driver to a wrench because I have their 18V Li-Ion battery, but they didn't - yet.
Hitachi sells many bare tools that can use these batteries, so while it's not as versatile as the One+ system, it's the next best thing - with better batteries.If you're taking big rig tires off, go for the Snap-On CT4850, but anything shy of that can be done at half the price and half the weight by the WR18DL - (again) with better batteries.Lovin' it.
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