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The NEIKO PRO 03715B Torque Multiplier 1/2" Drive Wrench has a massive 1100 Foot-Lbs output of torque. This lugnut torque wrench can be used on rusted or frozen fasteners/lugnuts that are the toughest to remove. With a chrome-moly head for extreme durability and accompanied by a chrome vanadium shaft handle, this torque multiplier wrench will get the job done! Look to NEIKO for all of your heavy duty torque requirements.
From the Manufacturer
Professional Grade 1/2" Drive Torque Wrench Multiplier
Richard Barrett
Reviewed in the United States on February 4, 2025
Worked great.
K G
Reviewed in the United States on February 11, 2025
Does what it's suppose to do. I needed 450ft lbs, with a 1/2" 250lb torque wrench this got the job done. Used with an appropriate size piece of pipe over the handle for my application to keep the arm braced properly.
The Ryan’s
Reviewed in Canada on September 26, 2024
Had to get 600 ft lbs out of my 200 ft lbs torque wrench worked really well.
Tech 3078
Reviewed in the United Arab Emirates on May 23, 2024
No manual, spair O ring is for the 3/4 input to 1’’ output and the red box is big, hard to rotate. I opened the tool and apply grease to the gears inside…
Gene
Reviewed in the United States on May 22, 2024
Let me start with the list of two important problems using this type of tool:1) The handle of this wrench needs to rest against an immobile surface, say, the ground. Because all of your leverage comes partly from this handle being captivated somehow against an immovable object2) Which brings you to the second problem. If you manage to rest that handle on the ground, say, the object the wrench is attached to wants to lift up when you apply torque to loosen the fastener you are afterCase in point. I purchased this to deal with a VW flywheel gland nut. The block is on my garage floor. The handle rests against the same floor. I apply a breaker bar. The block lifts off the floor. So, if the block were tied or bolted down to the floor, all might work as you wanted it to.In the end, I used a pneumatic air wrench to remove the nut in a few seconds. So the tool is an expensive paper weight for me unless I figure out a better way to fasten the target assembly to a bench or floor and that attachment can apply greater force than the tool (and not tip over my bench).All of the YouTubes of this tool show people taking off military vehicle lug nuts, or using the weight of a car to counteract the tool. So, I guess there are applications where the tool will work. I further suppose my application is not one of them.The tool itself is made well, and looks like a good quality product. I'm just not sure it's suitable for every big torque task. Some of these tasks I performed many times in the past by constructing a few long levers from flat steel, pipe extensions for my wrenches and loctite to prevent loosening.
Hugh Franklin
Reviewed in the United Kingdom on February 6, 2024
Brilliant value for a really well made product. Just laughed at my 1,100 N/M hub nut that had defied my trusty 3/4" square T bar & 2metres of tubing, my cheap & nasty 3/4 drive torque wrench in reverse etc. Hardly surprising when this compact tool will handle a torque nearly 5 times greater!
John
Reviewed in the United States on December 20, 2024
So far so good with this multiplier. Like other reviews it's about 3.5 multiplier as tested. I'm a bus mechanic and have used it quite a few times already and it works well.
Dr. B
Reviewed in the United States on November 14, 2024
Works perfectly, save me a lot of time
Enrique peña
Reviewed in Mexico on June 19, 2023
Llegó en tiempo y forma
anthony lindsay
Reviewed in Australia on August 28, 2022
Product does everything that it is designed to do
M. Hocker
Reviewed in the United States on April 18, 2022
First, for higher torque fasteners, over perhaps 200ft-lb, this is a great tool to have and reasonably affordable. As long as there is something for the reaction arm to rest on and room for the rather large tool head, the Neiko torque multiplier makes torque application much less of a strain particularly for one's back in awkward positions. And you really don't want to strain your back.Next, there are complaints about the tool having 3:1 laser etched ratio when the mechanical ratio is 3.3:1. So I did a quick empirical test because, yes, I don't want to substantially over torque fasteners: -- first verified the tool is 3.3:1 (1/2 wrench in one side, get about 3.3 turns for one turn of 3/4 side) -- next torque a couple of wheel lugs using tool, with 55ft-lb input (good quality CDI torque wrench) -- then removed torque multiplier, and adjust CDI torque wrench starting at 160ft-lb in 5ft-lb increments until I passed the lug nut torque that was applied with the torque multiplier.At 160- click, no movement of lugs. Lugs torqued higher than 160At 165- click, no movement of lugs. Lugs torqued higher than 165At 170- click, no movement of lugs. Lugs torqued higher than 170At 175- lugs moved before click. So the torque of the lugs is between 170 and 175This gives a torque ratio for this particular Neiko tool of about 3.1:1.The above is very empirical, no special calibrations were used. Using 3:1 is probably OK, perhaps adjust the input a tad low, or round down when calculating the torque wrench setting, or just figure that the fastener torque is not that critical and 3-5% won't matter due to other tolerances (torque wrench, dirt, fastener metallurgy, how much Wheaties was eaten for breakfast, ...).I like the tool, now those 300ft-lb strut bolts or 450ft-lb pinion nut pre-loads won't be quite so much effort.
Weaver Cattle Company
Reviewed in the United States on March 5, 2020
Who needs an expensive cordless impact gun when you can buy this tool instead.It has a 3.5:1 gear ratio and doesn't require expensive batteries to operate. Once you figure in gear slop & friction loss the multiplier is really a 3:1 multiplier just so you knowBasically, you put your 1/2" drive ratchet on one side and a 3/4" drive 6-point impact socket on the other end and proceed to break loose bolts torqued to over 400+ ft-lb with only a little over a 115ft-lb of torque on your 1/2" drive ratchet. This is what you call working smart via planetary gearing.With planetary gearing remember that the torque multiplier bar will move in the opposite direction you are turning your ratchet in. If you're rotating a tire that is using planetary gearing the wheel on the opposite side will rotate in the opposite direction.We used this tool to break bolts loose on our Allis Chalmers 7045 tractor that our Tekton 42" 3/4" drive break bar couldn't safely break loose even with a cheater/extension pipe on the end of it. This torque multiplier broke the bolts loose like it wasn't even breaking a sweat!It is a little scary when you first use it because the bolts make a loud pop when breaking them loose and you instinctively think that the bolt has snapped off in the hole creating an even bigger problem but luckily for us that wasn't the case!This is a must have tool in your shop especially if your working on large equipment! Just make sure you have a nice heavy walled pipe to go with it to brace the torque multiplier bar with.
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