 | Home > Off Topic > Cordless impact drivers |
 
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 923   
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Rather than a pure hardcore device for cracking the nut off I use an impact gun as a labour saving device to spend less time whirling a ratchet wrench about.
So anything tight gets the breaker bar treatment first then I have a Ryobi impact gun to buzz them off the rest of the way, ok it isn't as manly as my brothers Snap-on gun but I'm not made of money. |
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30th Oct 2017 9:22pm |
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| sako243 Member Since: 08 Jul 2014 Location: Wales Posts: 1234  
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Milwaukee M18 Fuel. Overkill for wheel nuts but yet to struggle on anything.
Got wheel nuts off an old Massey from the 1940s (owner was pretty sure they hadn't shifted in about that length of time...). Other good example was 40mm castenellated nut where the split pin snapped off. Whacked a socket over it and spun it off with sheer motor torque, didn't need the impact nature. Ed 82 Hotspur Sandringham 6x6 95 Defender 110 300Tdi |
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30th Oct 2017 9:23pm |
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| sako243 Member Since: 08 Jul 2014 Location: Wales Posts: 1234
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Interesting in comparison to Devon Rover I now use the impact hammer over a breaker bar to get nuts off. I find I can sheer a bolt much more easily with a breaker bar, the impact nature means it tends to break any rust seals first. Ed
82 Hotspur Sandringham 6x6 95 Defender 110 300Tdi Last edited by sako243 on 30th Oct 2017 9:40pm. Edited 1 time in total |
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30th Oct 2017 9:25pm |
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| rockster57 Member Since: 15 Nov 2014 Location: West Yorkshire Posts: 937 
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DeWalt DCF899
http://www.dewalt.com/products/power-tools...e/dcf899hb Very similar torque/spec to the Milwaukee above. Not as classy mind  Last edited by rockster57 on 30th Oct 2017 9:43pm. Edited 2 times in total |
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30th Oct 2017 9:39pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17614 
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Milwaukee M18 Fuel. Can't be bettered in my opinoin.
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30th Oct 2017 9:41pm |
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| Chris90V8 Member Since: 02 Oct 2016 Location: Suffolk Posts: 714  
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Makita DTW251Z 18v cordless impact wrench.
Solid bit of kit that hasn't let me down yet  π. ...... . .... . .. ππππππππ |
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30th Oct 2017 10:03pm |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 923
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Interesting to hear. I might try it and see. I'm of the sort that doesn't want to stress the gun so do the hard work manually as they are not cheap to replace. and I reckon a lot more force can be applied by my ample frame and a 1 meter long breaker bar. It's been a while since I've sheared a bolt as many years of practice means it is almost instinctive to when a bolt is about to go and I back off. The technique of being gentle and slowly working it free pays off. A lot of stuff I do generally is the extracting of bolts where the heads have rusted off. Namely caliper bolts, kingpins and stub axle ones. As I said one brother has a Snap-on the other a Milwaukee fuel and amazing as it is I'm only a simple pleb and can't afford that outlay to be used only at the weekends |
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30th Oct 2017 10:10pm |
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| agentmulder Member Since: 16 Apr 2016 Location: Outer Space Posts: 1324 
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My Makita BTW251Z cranks away just fine (I think just some battery electronic changes compared to above?)
The Milwaukee looks awesome, but I already have invested in the Makita LXT batteries with a bunch of other tools so it was easy enough to get the tool only wrench... Solved the bowel problem, working on the consonants... |
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30th Oct 2017 10:11pm |
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| sako243 Member Since: 08 Jul 2014 Location: Wales Posts: 1234
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It's not so much about how much torque but how it's applied. Take the M18 and Dewalts and they can apply 1500Nm of torque to 'bust' a nut. 1500Nm is roughly equivalent to 150kg static weight hanging off a 1m breaker bar. If we assume that the person applying the torque for all intents and purposes does not accelerate the breaker bar then there is 0 kinetic energy imparted to the fastener. However taking the Dewalt as an example where it can impact at 2400 impacts per minute (40 per second) then assuming there is some movement (no matter how small) there is a significant amount of energy imparted into the fastener to undo it. Undo a stuck nut with an impact hammer and you'll notice it can get quite warm - a by product of all that kinetic energy - it has to go somewhere if the nut isn't moving so it goes into noise and heat. That energy isn't always good but it can help break seals formed by threadlock, rust etc. The downside of using impact hammers is particularly with something like the higher end ones is that you must have a good fitting socket. They deliver so much torque so quickly that it's just a fast way to turn a sort of straight sided bolt into a round one very fast. Ed 82 Hotspur Sandringham 6x6 95 Defender 110 300Tdi |
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30th Oct 2017 10:38pm |
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| NickBristol Member Since: 16 Jul 2017 Location: SW Posts: 47
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+1 for Milwaukee M18. Have pretty much all the range from combi driver to angle grinder. Even got a hoover.
Once youve got a few batteries and fast charger the naked tools arent too bad value, although it was nicer to get them when I could write them off against tax as a legitimate business expense. |
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30th Oct 2017 10:38pm |
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| sako243 Member Since: 08 Jul 2014 Location: Wales Posts: 1234
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I'd forgotten about the grinder - I've got one of those as well. Was stripped back some sides before painting and my 'cheapo' angle grinder actually melted it's gearbox. The Fuel grinder just carried on - the only thing was I've only got a pair of 5Ah batteries and it was a hot day, between the charging cycles and usage they did eventually start overheating (after about 3h of continuous use) and I had to let them cool down before charging them up again. Grinder actually in that short period of time got more use than the mains powered one did in its entire life so goes to show how well made their stuff is.
On the whole I think all the big names (Milwaukee, Dewalt, Makita etc) are pretty much on par and it's largely down to who's batteries you got first. The Milwaukees do seem to be standing up to the abuse we've been giving them and we have a number of friends into historic rallying and they put us onto them initially as the only tools they had that lasted more than a year being chucked around a very wet Welsh rally stage... Ed 82 Hotspur Sandringham 6x6 95 Defender 110 300Tdi |
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30th Oct 2017 10:44pm |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 923
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Food for thought Thanks for that |
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30th Oct 2017 10:47pm |
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| Coatesyyy Member Since: 07 Sep 2017 Location: Knutsford Posts: 423
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+1 Milwaukee M18 Fuel, yet to find something it has struggled with. As others have said it may be overkill but it won't ever leave you stuck, and should be a tool for life
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30th Oct 2017 10:52pm |
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| Mash Member Since: 09 Feb 2015 Location: Guernsey Posts: 1674  
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I have the 1/2" ingersol rand and I can't fault it, I have used it on everything from land rovers to Mastiffs it makes short work of the ubolts and wheel nuts on those. 90 wolf - Jasmin http://www.defender2.net/forum/topic39408.html
90 V8 - Maggie http://www.defender2.net/forum/topic42564.html 110 TD5 - Buggsy http://www.defender2.net/forum/topic59029.html 52HG25 lightweight https://www.defender2.net/forum/topic72342.html D3 Hse - Fiona Capri 2l S - Anna Think I might have a problem............ |
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30th Oct 2017 10:58pm |
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