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  1. #1
    Join Date
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    Default What size angle grinder ??

    Hi , I am looking at getting a new/another angle grinder. I have blue bosch 100mm & a 115mm cordless Hitachi but I need a bigger one . I not sure if I could handle a 9inch grinder- would a 7 inch be easier to handle ??
    Any thoughts .
    Planepig

  2. #2
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    7" are far more easy to handle than a 9", lighter easier to manouver etc. Depends if you want it for grinding or cutting and depth of cut.

    www.solidwoodfurniture.com.au

    A good edge takes a little sweat!!

  3. #3
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    In case it helps, I'm 53 years old, weigh 63 kg wringing wet and use a 9" grinder a lot with no problems. It's a matter of respecting the machine and being careful. I'm not sure there'd be much difference between a 7" and a 9" in any case.

    I have 2 x 9" grinders, 1 Makita set up for cutting which I've had for 20 odd years and a Bosch which I use for grinding.. Also have a slew of 4" and 5" for finer work with a combination of grinding and flap wheels.

  4. #4
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    Default 7" & 9 "

    Thanks claw hama & Gavin for your reples. I have been checking the weight of 7 & 9 inch grinders & they are almost the same weight. When I get the $$$ I will check them out .
    Planepig

  5. #5
    jatt's Avatar
    jatt is offline Always within 10 paces from nearest stubby holder
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    Of course it depends on what u plan on doing with it. So I guess the question is what do u plan to use it for?

    Found my 9 inch spends most of its time with a masonry disk on it. Seems to be my elcheapo concrete cutter. Dont seem to use it much on steel. Have the cuttoff saw for that.

    Only prob I found with the 9 inch is the extra weight and of course a bit more vibratration.

    Most if the time my 125 corded and 115 cordless grinders are in use. One runs a thin metal cuttoff wheel, the other a grinding disk.

    Cant recall using a 7 inch myself.

    My suggestion: buy the 9 inch. It appears that you already have the smaller end of the scale sorted.
    Frisky wife, happy life. ​Then I woke up. Oh well it was fun while it lasted.
    From an early age my father taught me to wear welding gloves . "Its not to protect your hands son, its to put out the fire when u set yourself alight".

  6. #6
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    Default 9"

    Thanks Jatt,
    I did have in mind cutting concrete with the bigger grinder so I think I will go with the 9 "
    Planepig.

  7. #7
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    Default Angle Grinders

    At risk of preaching to the converted.
    Couple of years ago I was in Hospital with a minor problem and in the next bed was a guy that had an argument with a grinder and lost. The disk went halfway through his thighbone. I have had a very healthy respect for mine ever since.

    Roger

  8. #8
    Join Date
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    newcastle
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    Exclamation Hi risk 9" grinder

    Hi,

    Just be aware that many industrial workplaces have banned 9" grinders due to the personal injury that they can create. Very nasty!

  9. #9
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    Default thanks

    Thanks for your concerns I will keep them in mind when I decide on what size I now end up with .
    Planepig.

  10. #10
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    there's nothing quite like that moment when you have had a run in with a grinding wheel, when you look at your (insert body part here) and see the space where part of you used to be, just as the blood is starting to come and just before the pain hits. Its one of those Aah S*** moments.
    Grind injuries seem to take forever to heal as well.

    I've never hurt myself with an angle grinder of any size but have had a few off bench and floor grinders.
    Best thing to remember with an angle grinder is check to make sure the switch is off before you plug the lead in and wait until the wheel stops before you put it down.

    bollie7

  11. #11
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    Default

    Most mining and industrial construction sites have banned 9" grinders.
    I would go the 7" as it is a good size and will handle most of the bigger jobs unless you plan on doing some pretty serious grinding.

    My old man picked up a 9" grinder by the trigger end one day and inadvertently pressed the trigger at the same time. The torque caused the grinder to jump and somehow it hit his wrist as his other hand was reaching for the front grip.
    He had lots of microsurgery and eventually regained full use of his hand but it was a close call.
    My dad has worked in construction for 35 years and is no fool with tools, just an accident from a sometimes dangerous machine.
    "There is no dark side of the moon really. Matter of fact it's all dark."

  12. #12
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    Any tool can be dangerous, I look around my workshop and I see various grinders, 14" cutoff saw, metal lathe, mill, pistol drills, drill presses and welders. The garden shed contains a chainsaw, chipper/shredder, ladders etc.

    Any of these could kill or maim, I think the essence is to respect the power of the tool, use it wisely (think three times, act once) but not to be afraid to utilise the tools properly.

    It's a matter of striking a balance between rashness and wrapping yourself in cotton wool and dying of inaction.

    Mind you, I say this as a guy who spends his spare weekend driving around race tracks in a superkart, a go-kart on steroids that runs to well over 200 kmh, no belts, no roll-cages....

  13. #13
    BobL is offline Member: Blue and white apron brigade
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    Quote Originally Posted by Gavin Newman View Post
    Any tool can be dangerous, I look around my workshop and I see various grinders, 14" cutoff saw, metal lathe, mill, pistol drills, drill presses and welders. The garden shed contains a chainsaw, chipper/shredder, ladders etc.
    Ladders are #1 cause of DIY handyperson, Accidents, Hospitalizations and Deaths

    #2 and #3 DIY handy person deaths are motor vehicle repairs (crushed when jack fails) and electrocution!

    Angle grinders are in the top 10 for accidents, mostly for eye injuries from people not wearing eye protection!

  14. #14
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    #1 cause of handyman death is breathing. Statistics prove that 100% of handymen who breathe die (eventually)

  15. #15
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    Default

    I know a bloke with a permanent smile thanks to a 9" angle grinder that kicked back. The scar runs from the corner of his mouth to just below his right ear.
    "I don't practice what I preach because I'm not the kind of person I'm preaching to."

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