12V Car Wrench - £19.99 + Delivery (or collect instore) @ Maplin + 5% Quidco - HotUKDeals
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**Bump the order up to £35 for free delivery or add 2.99 for Delivery.**

12V Car Wrench
Ideal for changing a wheel without the hard work of using a hand tool
Powered from the cigarette lighter socket or via the supplied car battery clamps to 12V socket adaptor
Large 340 N·m (250lb/ft) torque - ideal for use even with 4x4 vehicles or MPVs
Supplied complete with angled screwdriver for easy hubcap removal and spare fuse for the cigarette lighter plug
Complete with 7/8 inch (22.2mm), 13/16 inch (20.6mm), 3/4 inch (19.1mm) and 11/16 inch (17.5mm) nuts
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8y, 8m agoFound 8 years, 8 months ago
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#2
Heavy!
#3
garbage456
12 VOLT?
if a 12 volt hoover cant pick up half the rubbish in the car, how is a 12 volt wrench going to undo a stuck nut?


Simple , it all depends what type of motor is used . This will probably be a low geared high torque motor , whether it runs on 12v isn't an issue .
#4
#5
PJR
Simple , it all depends what type of motor is used . This will probably be a low geared high torque motor , whether it runs on 12v isn't an issue .


Realistically the issue is whether it is an impact wrench.

While what you say is true in that power is the product of torque and speed - so dropping the speed increases the torque while the power remains constant. The main issue is from the picture your hand is directly behind the bolt - so the force to turn the bolt is equal to the force that can also turn your hand (and it will turn which ever is easiest).

If it is an impact wrench (the type that makes a loud clicking noise when you see them change wheels in garages) it uses the weight of the wrench against a quick hammer like rotation movement to undo the bolts (like tapping a normal wheel wrench repeatedly with a hammer).

If it works on this principle then it should be fine - if it just rotates then it wont work,
#6
I bought one of these the other day. Got it because it has a higher torque capacity than most competing units, so should be good for doing just about anything I can throw at it (brake caliper bolts, anti-roll bar brackets, exhaust bolts, wheel nuts, etc). Works a treat. I can confirm it IS an impact wrench... ie. it works on the principle of 'shocking' a nut loose. The only real difference between this and a much pricier cordless (or air-driven) impact wrench is the IPM value (Impacts Per Minute). On this unit, you're talking about a 2-3 second gap between impacts, instead of the gattling gun speed of a 'proper' impact wrench. Not an issue though... wheel nuts come off in seconds. For the money, it's a great bit of kit.

Cheers,
Ian.
#7
I have used one of these 12v units before, and it is in impact unit which worked fine for me.
Slackened a very tight set of wheel nuts off for me with minimal fuss.

Jav
#8
ibiza
Realistically the issue is whether it is an impact wrench.

While what you say is true in that power is the product of torque and speed - so dropping the speed increases the torque while the power remains constant. The main issue is from the picture your hand is directly behind the bolt - so the force to turn the bolt is equal to the force that can also turn your hand (and it will turn which ever is easiest).

If it is an impact wrench (the type that makes a loud clicking noise when you see them change wheels in garages) it uses the weight of the wrench against a quick hammer like rotation movement to undo the bolts (like tapping a normal wheel wrench repeatedly with a hammer).

If it works on this principle then it should be fine - if it just rotates then it wont work,


Who got O' level in engineering then ?

Thanks for the techno stuff , it is always nice to read on things that one never knew about .

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