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Angle grinder wood chain saw blades

Discussion in 'Tools and Materials' started by opps, 20 May 2020.

  1. opps

    opps

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    He seems to be using a completely different type of attachment, and not the one being sold.
     
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  3. opps

    opps

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    Those blades are illegal.

    http://www.slough.gov.uk/consumer-advice/product-recalls.aspx?docId=326479

    From the above

    The circular saw blade may be mounted on an angle grinder and could therefore, against its intended use, be used as a hand-held circular saw.

    As a consequence, this could cause kickback or loss of control over the tool, resulting in serious injury.

    The product does not comply with the requirements of the Machinery Directive and the relevant European Standards EN 60745 and EN 62841.
     
  4. StephenOak

    StephenOak

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    @JobAndKnock

    Thanks very much. Most informative.

    Thanks also for that

    I find that piece a bit confusing.

    Aren't the majority of circular saws hand-held? Something like this
    https://www.amazon.co.uk/WORX-WX423-Compact-Circular-Worxsaw/dp/B019GNGXPC/
    is not totally different from an angle grinder with a saw blade. Of course it does have a sole plate and a blade guard, but it is a hand-held circular saw that could be held in one hand.
     
    Last edited: 21 May 2020
  5. Nozzle

    Nozzle

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    I'm sure machine mart, a reputable company, used to sell the angle grinder blades with the chain-saw chain mounted around them. Can't see them for sale today though so it might well be they've also taken them off the market,

    Nozzle
     
  6. EddieM

    EddieM

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    Reminds me a bit of when I was tasked with going up a fully extended triple ladder, armed with a diamond core drill in order to cut a hole for the shower vent.

    I politely declined.
     
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  7. opps

    opps

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    I suspect that the point might be that the angle grinder is certified as conforming to the regs with regards to performing certain tasks. The saw blades change the usage of the angle grinder.

    My old Dewalt/Elu biscuit joiner (DS140) is basically an angle grinder but like the saw you linked to the blade can jump back into the housing in the event of kick back.
     
    Last edited: 21 May 2020
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  8. StephenOak

    StephenOak

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    Yes, I have just re-read it and I see it means
    'The circular saw blade may be mounted on an angle grinder and could be used as a hand-held circular saw, which is against its intended use'.

    Thanks again.
     
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  9. StephenOak

    StephenOak

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    And this reminded me of something I saw some time ago. Angle grinders & chainsaws are both dangerous, so what could be better than combining them!



    Whilst looking for that I came across lots of videos about a commercial conversion kit, e.g.
     
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  11. JobAndKnock

    JobAndKnock

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    Completely different in execution:

    For starters angle grinder discs (or blades) have a far higher peripheral speed than that of circular saws, meaning that a converted grinder will cut a LOT faster than a circular saw. Example: my Metabo 115mm angle grinder is rated at 11000rpm giving a peripheral speed (no load) of 7944m/min (circa 295 mph) whereas that Worx 120mm rip saw you link to turns at 3700rpm (no load) or 2790m/min (circa 104mph).

    Secondly circular saws, by law, need to be factory fitted with an automatically operating blade guard which closes when the saw exits a cut or is withdrawn from the work. Grinders lack this

    Thirdly the vast majority of small angle grinders have lock-on power switches as opposed to the paddle switches you find on industrial 230mm grinders. Drop a 230mm industrial grinder and it turns off as soon as you let go of the switch (all right it takes a bit of time to run down). The vast majority of circular saws on the market have sprung switch buttons which need to be physically hold on for the saw to run. Drop a small grinder which is running and it will continue to run. This particular difference alone makes a small "one hand" grinder potentially more dangerous to the user than a circular saw

    Small grinders are often sold and are perceived as one hand tools whereas pretty much everyone who has used one would agree that circular saws in the main, and except for small saws with a limited cutting capacity, are two hand tools. Two handed use is safer if only because both of your hands are away from the blade

    Circular saws should have the base plate set so that the blade protrudes only a few millimetres further than the thickness of the material being cut. This is for safety reasons. An angle grinder lacks this ability to control the depth of cut

    And so on. There are many other reasons why a circular saw is completely different from an angle grinder

    Just because something can be done it doesn't follow that it is safe or sensible to do.it....
     
    Last edited: 21 May 2020
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  12. StephenOak

    StephenOak

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    @JobAndKnock

    Thanks. I had misread (misunderstood maybe) the piece that @opps linked to, but he clarified it for me, post #21.
     
  13. catlad

    catlad

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    I read on a forum somewhere ( can't remember now ) about a wood carver recommending one to a fellow wood carver, He then told him about the dangers and told him to make sure his work piece was clamped down and to hold it with two hands! anyway he ignores all of that and the moment the blade touched the work piece it flew out of his hand and hit him in the neck and face. The long and short of it was he survived with a lot of stitches and scars. And he considered himself lucky in the end.
     
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  14. Nige F

    Nige F

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  15. Munroist

    Munroist

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    he does doesn't he, looks like a sanding disc. But whatever, the ad is selling one of these very dangerous chainsaw blades and as such you could very easily assume that is how easy it is to use.

    I would't even do what he is doing with a sanding disc, and I'm not big on H&S
     
  16. catlad

    catlad

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    Try using one of those disks one handed and you will be in big trouble.
     
  17. Safety First

    Safety First

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    Very much want one. Want to have a go. And don't, at the same time.
     
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