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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. Ingersol Rand makes a great cordless with Lithium batteries at 350 ft-pounds. The Dewalt cordless impact has 300 ft-pounds at $299, but it continues to use the outdated Nicad batteries.in the heat where I live, these fail rapidly and you spend a fortune replacing them every year. There are heavier impacts.
It's so small, it's almost fun to see this tool remove the lugs so easily. 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. And, most of these tools are HEAVY. This fanstastic little powerhouse removes the wheel lugs on my trailer and SUVs rapidly. The specs say it's only 1950in-pounds, or 162ft-pounds. (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. It's $400 w/ two batteries.
If your wheel lugs are not seriously coroded and neglected, this tool seems to have the muscle to take them off. Don't let the size of this tool trick you. 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. 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.
In over a year it has never been a problem. I use this almost everyday for work. Both batteries still hold a charge with no problems.
It is very light and the battery's hold charge very well. However it really is not rated as high a tork range as a air impact.Overall meets all my expectations. Have had impact wrench for few weeks. 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.
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. Hitachi uses the same nano-phosphate formula that DeWalt uses.
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. Manganese Li-Ion only lasts 300-500 cycles - same as NiCd and NiMH.
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. Since Ryobi uses manganese Li-Ion, this is no great hardship.
Got the WR18DL today and it promptly took a lug nut that was torqued to 80ft/lb off my Maxima - in about 5 seconds. All Li-Ion batteries are not alike.
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.
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