400W Electric Wrench


£ 47.21 

  • Max torque 350Nm
  • 1/2” square drive
  • Variable speed trigger
  • Ideal for freeing tight bolts & fastening to high torque values
  • Includes 17, 19, 21 & 23mm hardened steel sockets

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4 out of 5 stars
25 review(s)

Product Specification

Finish Plastic
IP Rating IP20
Power 400W
Blows/Impacts Per Minute 0 - 4000/min
No Load Speed 3200rpm
Max Torque 350Nm
Product Weight 2.37kg


Key Features

Mains-powered impact wrench with a high torque output of 350Nm, ideal for freeing tight bolts and fastening to high torque values. Precise user control with a variable speed trigger, forward/reverse selector and vibration reducing soft-grip handle. ½” square drive for compatibility with medium to large socket bits. Includes 17, 19, 21 and 23mm hardened steel sockets.

Box Contents

  • 1 x Impact Wrench 400W
  • 1 x 17mm Socket
  • 1 x 19mm Socket
  • 1 x 21mm Socket
  • 1 x 23mm Socket
  • 1 x Manual

Customer Ratings

By: Luca


My best purchase of 2018! It''s exactly what I was searching for: strong and reliable electric impact wrench able to unscrew all that bolts that you can''t by your arms.



Superbe outil , puissant , équivalent et du matériel beaucoup plus couteux. Tout mes copains bricoleurs ont acheté la même aprés l''avoir essayé.

By: R Millin


I have used my wrench extensively since last review (May 2017). My friends have borrowed it and it is still going well.It is without doubt the best power tool I have purchased in many years.Highly recommended.

By: Jeremy Hunt


There are two reasons I bought this. Firstly, it has a variable speed. Secondly it is a mains driven impact driver. I replaced a shock absorber on my honda civic, and although it didn''t have any problem getting the nuts on and off, it could not cope with one nut until I applied some heat to it. Comparing the one I used in the garage (I am a technician) then I would say it is not as powerful as the CP air gun I was used to, but for what I wanted it for (speeding the process of removing and replacing nuts over just using a ratchet and spanner) then it did the job. I did the shocks in around two hours. Without this tool it would have been a lot longer. Good tool. Well worth it, and to be truthful, it''s fun to use.

By: Ricky


Having only just used once for car suspension components, had no issues. Tool is a very good entry level impact wrench.

By: Paul manchester


Great Bit of kit has plenty of grunt perfect for suspension units track rod ends ,etc

By: Oscar Edwards


Lovely power through this. Locking wheel nuts came undone in the blink of an eye - among other jobs around the home. Very well priced with no fuss and immediate task handling. Highly recommended.

By: José


The product comes in a card box, together with 4 socket wrenches. The build quality is good and the touch feel is great. It has a green light indicating it is connected to power. The control of the speed through the trigger is easy.

By: Royston Millin


I purchased this wrench after months of research. The only down side was the inability to tryout the different makes in person and rely on customer reviews. At 68 years of age I needed something fairly lightweight, that did not snatch,is durable and does what it claimed. Price was also a major issue. The warmer weather has arrived and MOT is in June. The wrench has performed brilliantly, ten out of ten on all tasks so far and lets hope it keeps on going. I had trouble with the nuts on one wheel but the guy at tyre bay had to resort to a large bar and a lot of effort to release them so no reflection on my wrench. Adjustable speed on trigger, Excellent!!! Highly recmmended.

By: T Lowe


Excellent product at very competitive price

By: Tim Lowe


Excellent product, well priced with good build quality. Will see good service helping to rebuild my 20 year old mazda mx5.

By: Raymond


Very good price for this good tool!

By: Jeff Ison


Brilliant tool and powerful. So wish I''d seen and bought one of these decades ago. I have an air impact wrench but this knocks spots off it for power. My air one wouldn''t remove some of my car''s wheel-nuts but this little beaty did - no prob. I keep looking round my shed and garage trying to find more uses for it, just for the fun and satisfation of using it. With cheap adaptors from e-bay, it also now drives large screws brilliantly - ideal for decking. Proves that at 73, I''m still a kid at heart (someone - please tell my body!!) Summary: Love it!! [and it''s inexpensive and I rarely am able to sday that!]



produit conforme aux exigences demandées, convient parfaitement pour des réparations courantes .Je suis très satisfait de mon achat auprès de ce fournisseur compte tenu du prix et de la qualité du matériel

By: Matt K


Great item, handles most jobs well, very happy.

By: James law


Just the job it will remove any nut or bolt on the bike kawasaki zx12

By: J Watton


Best investment in a power tool ever if you suffer with any form of sore finger joint or wrist joint soreness and still want to repair your car or do anything where there is a need to tighten or undo nuts and bolts then this is the tool to do it perfect.

By: William Patton


This impact wrench has variable trigger. Something more expensive ones does not have. A must for tightening smaller fasteners. My dad tightened up an m16 bolt with his new cp7748 to a torque of 990nm and this wrench was able to slacken it. I think this is a great tool at a great price.

By: Kelvin


Bought this after looking at more expensive alternatives and pleased with the choice. Bargain price with good power and control and a 3 year warranty. Is worth buying just as a time saver on wheel nuts etc. but invaluable for stubborn fasteners too.

By: baertsoen


très bon outil,fait juste son travail(manque réglage du couple),pour le montage des roues finir le travail a la clé dynamométrique,

By: baertsoen


conforme a la description

By: rault frédéric


pour changer mon jeu de jantes hivers , ce produit coûte seulement le prix que demande le garagiste pour un changement de roue, 1 changement et c''''est rentabilisé

By: Diane


I''''ve this and it''''s strong where have you been than you

By: Philippe Muller


This electric tool is one of the best investment ever.

By: Michael


Excellent tool compared to most as the variable speed makes it so much more user friendly, I''ve tried other makes and by far this is the best. It''s pritty much on par with an air impact wrench, but for the home mechanic perfect

Reviews & Awards

What's immediately obvious is that they've designed the Silverstorm to be absolutely solid. The cast metal front end gives you plenty of confidence in its build quality too, in this case weighty is very much a good thing. In a nutshell: Seriously powerful and serious value, everything you could ever need.

3 Year Guarantee

This Silverline 400W Electric Wrench is guaranteed for a period of 30 days from date of purchase against a fault developing in either the materials or the workmanship during manufacture. You can register for your 3 Year guarantee by registering your product online. Any faulty goods will be repaired or replaced free of charge.

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