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In Praise of the Impact Wrench; Hitachi WR16SA
Topic Started: Sep 8 2014, 06:13 PM (658 Views)
Red Dirt
Member
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I rented a Hitachi WR16SA impact wrench. It's an electric (cord) tool and it has a maximum torque of 265 foot/pounds. With it, I removed the crankshaft bolt and then the axle nut. Each came off in about 7 seconds. It cost me $15.00 plus tax to rent it for one day. It was my first experience using an impact wrench. What a great tool. I wonder how it would compare with the similar tools I saw on sale at the popular stores.
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mwebb
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FOG

the electric impact tools are kinda wimpy compared to the air tools
a cheap 1/2 inch air impact wrench will easily be rated at 400 ft/lbs
it will be good for close to 200 ftlbs

but
they can be purchased used
on craigslist
pretty cheaply

and they will last longer than the ac electric or battery powered impact wrenches

i have a air operated 1 inch impact wrench for big axle nuts on vw s , nothing comes close from the long menu of electric impact tools
and
the $150 battery will never where out
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Red Dirt
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I rented an electric (corded) DeWalt DW292. It's rated at 345 ft/pounds. It has a detent pin anvil. I didn't like this tool as well as the Hitachi WR16SA I rented last week. Curiously, the Hitachi seemed more powerful even though it is rated at 265 ft/pounds. Rated torque is not the same as in-the-garage torque. I used the DeWalt DW292 to remove the nuts and bolts on the lower strut bolts that attach to the steering knuckle. It was a struggle but eventually the DeWalt loosened them enough that I could finish the job with hand-tools. It took half an hour. Removing and installing sockets on the DeWalt was cumbersome. I had to use a small punch to push in the pin on the anvil each time I wanted to remove a socket.
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perfesser
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Elite Member - Former Metro owner

I have a Milwaukee 18V impact wrench (in addition to a wide range of air tools.) It is a total beast!! The pneumatic are nice for working at home base, but the cordless is supreme at the pnp! I find I'm plugging my compressor in less and less and using the Milwaukee at home more and more. No hoses, no noisy compressor, etc., etc.
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Cobb
BANNED

Ive been rather impressed with the one from harbor freight. Removed a few rounded and stripped lug nuts. It just kept on hitting. The air tools Ive used seem to wimp out after a few hits and I usually wait til the compressor kicks off before I try it again.
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vr4


mwebb
Sep 8 2014, 11:20 PM
the electric impact tools are kinda wimpy compared to the air tools
a cheap 1/2 inch air impact wrench will easily be rated at 400 ft/lbs
it will be good for close to 200 ftlbs

but
they can be purchased used
on craigslist
pretty cheaply

and they will last longer than the ac electric or battery powered impact wrenches

i have a air operated 1 inch impact wrench for big axle nuts on vw s , nothing comes close from the long menu of electric impact tools
and
the $150 battery will never where out
Posted Image


It is about 90% as powerful as my ir 2135ti. In willing to bet it'll do those vw nuts. There is no nut or bolt on any car that needs a 1" impact unless it's a harbor freight one.
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Freeman
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The Family Man

perfesser
Sep 13 2014, 10:11 AM
I have a Milwaukee 18V impact wrench...
This is what the utility Linemen at work use. 'Nuff said!
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greenacarina
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I've had a few impact guns over the years (air powered).
Having enough air pressure and volume can definitely be an issue.
Recently bought the Harbor Freight "Earthquake" gun. I forget what it's rated at torque-wise, but it definitely has some balls.
Haven't come across anything yet that it can't tackle.

Chris
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perfesser
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Elite Member - Former Metro owner

In my toolbox on the bus, I have an air impact that'll handle 650 ft-lb of torque. It's not too much bigger than a regular impact wrench, but it's got all kinds of grunt to it!! The bus's lug nuts need to be tightened to 550 ft-lb, so the puny things I used to make my living as a mechanic with just aren't even in the same league!!

The engine driven compressor for the air suspension gives me all the air I need to run it.
Edited by perfesser, Oct 28 2014, 11:33 PM.
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