 | Home > Maintenance & Modifications > Cordless angle grinders |
 
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| JOW240725 Member Since: 04 May 2015 Location: Suffolk Posts: 7903   
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I have an 18v Makita which works fine... for about 5 minutes then flat battery! So depends what you want it for! James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641 MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557 Instagram @suffolk_rovers |
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16th Sep 2016 11:55am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17319 
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I have a Milwaukee M18 FUEL cordless 4.1/2" angle grinder (as well as a range of corded ones) and it is very good indeed, well up to the job.
A hint if you're cutting rather than grinding with a cordless angle grinder - use the modern ultra thin discs, 1mm or so thick. Since they remove far less material you'll get a much longer run time. Be careful not to exert any lateral force on the disc though, only radial. Last edited by blackwolf on 16th Sep 2016 1:32pm. Edited 2 times in total |
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16th Sep 2016 12:23pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20281
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I've got this one: https://www.buyaparcel.com/p/bosch-angle-g...nd-l-boxx/
only with 3x 5AH batteries. There are 6AH available now too. Various combination you can buy as packs and come in stacking cases too, they are excellent. ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️ |
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16th Sep 2016 12:38pm |
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971 
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The Ryobi one isn't very good, lacks power and munches through batteries.
But then I haven't used any Ryobi tools that have been great 
I've made an adaptor that lets you attach the "cordless" grinder to a tractor battery, it's 14V rather than 18V but actually performs better than it did on batteries. The peak speed is lower but it doesn't slow down so much when you load it up. Our builder and electrician both use Makita cordless grinders for light work. Whatever you get it's unlikely to last as long as a mains one - if mains is an option then it's going to perform better and be cheaper. |
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16th Sep 2016 6:48pm |
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| defender9 Member Since: 12 Mar 2016 Location: Fylde Coast Posts: 1629 
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I'm with Blackwolf, the Milwaukee is a good grinder but Makita is better for drilling / screwing
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16th Sep 2016 7:25pm |
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| Pinky Member Since: 09 Jun 2016 Location: England Posts: 208  
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I've got the same as custom90steve but with three 4ah batteries, they last really well and it's quite powerful. I cut three six foot corrugated steel sheets down the middle lengthways and the battery was hardly discharged. I guess it depends what you want to do with it and how often!
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16th Sep 2016 7:33pm |
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| Morepower Member Since: 08 Jan 2013 Location: Fife, Scotland Posts: 630 
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I've got a De-Walt 5ah with 3 batteries... Very good (you can't really notice any difference from a mains unit)... However battery life is ok and no more..
Tim It doesn't matter how bad it is, It can always get worse... 2013 Bowler 110 (Sold) 2016 Bowler 90 Rally Spec (Sold) |
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16th Sep 2016 9:09pm |
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| lambert.the.farmer Member Since: 11 Apr 2012 Location: harrogate Posts: 2006 
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We have a makita cordless for convenience and it is actually quite good for stock removal but it's not the best for cutting. We also have a fein corded for serious manly jobs and i can't fault in. Word of advice if you use a grinder on stone type materials get an air line and blow it out afterwards, maintenance and all that. Rhubarb and custard let fly with their secret weapon.
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17th Sep 2016 8:19am |
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| Chris86 Member Since: 15 Jul 2014 Location: South Yorks Posts: 787 
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Another vote for the miwaukee fuel grinder.
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9th Oct 2016 9:30am |
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| Timcat Member Since: 20 Jul 2016 Location: Rugby at the moment Posts: 1024 
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Plus one for the De-Walt Xr range 18v lithium....
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9th Oct 2016 12:42pm |
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| Romadog Member Since: 07 Jul 2011 Location: Powys Posts: 1749 |
Battery life depends on job being carried out and type of battery fitted. I run 5 Amp/hr batteries with my Makita kit - they now have a 6 Amp/hr one out.
If I'm doing continuous heavy work then the 240v tool is used If doing small job and not close to power supply or leads an issue then the battery power is used. Remember HAVs. Changing battery and charging gives an excuse for a break so that tool can cool and operative can rest, and not be as affected by the vibration. |
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9th Oct 2016 1:22pm |
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| Bluebay Member Since: 25 Aug 2015 Location: Sheffield Posts: 9 
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We have Milwaukee at work which gets lots of abuse and is still going strong after 18 months.I'd buy one if I needed one at home without hesitation.
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9th Oct 2016 1:57pm |
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