[AT] off topic some Angle Grinders

Mon Aug 8 11:37:19 PDT 2016

 From now on when I shut the switch off, I will stop the wheel on 
something before i turn it loose..
Cecil in OKla

On 8/8/2016 1:23 PM, charlie hill wrote:
> Alan,  I think that's what I said.  I didn't say they often do that
> but when they fail that's how and since they aren't used for grinding
> you don't often hear of the accident with them that Cecil had.
> It can happen but the things are somewhat fragile and they will bind and
> break.
>
> Charlie
>
> -----Original Message-----
> From: Alan Nadeau
> Sent: Monday, August 08, 2016 11:34 AM
> To: Antique tractor email discussion group
> Subject: Re: [AT] off topic some Angle Grinders
>
> In over 35 years of using cutting discs I don't think I have had one fly
> apart unless it was first jammed and twisted in the cut enough to break the
> reinforcing mat they are composed of.  There are smaller versions than what
> we generally run on angle grinders that are bonded abrasives, think bench
> grinder type "stones", those WILL come unglued quite easily.
>
> Most of my use of the discs has been on Metabo® brand grinders.  They have a
> slip clutch which will slip before they will twist a reinforced disc into
> pieces.
>
> I have received a few minor grinding injuries, mostly just enough to wipe
> off the outer layer of skin.  Kinda neat, in a sick sort of manner, to see
> the blood starting to show up when the capillaries start to leak.
>
> My only real serious encounter was when I was using a "knotted" wire wheel.
> That's a heavy wire brush where the wires are in tightly twisted clusters
> around the perimeter of the center plate, generally used for paint/rust/weld
> slag removal/cleaning.  I was holding the part in my left hand and running
> the grinder with my right around the barrel of the tool.   This was a Metabo
> with the locking switch and, luckily, the slip clutch.
>
> The brush snagged on an edge of the part and the grinder was twisted out of
> my hand.  It jumped back and to the left, completely unrestrained, and
> snagged my tee shirt like a wildcat, a wildcat with 10,000 rpm claws.  Wound
> itself up in my shirt and across my belly.  Shredded the shirt and was
> flopping around in the debris of that before it finally wound in tight
> enough for the clutch to release, stopping the action so I could corral it
> and reach the switch.  The shirt was trashed and I was leaking from a whole
> bunch of the electric wildcat's claws.  Nothing very deep but it did,
> indeed, look like I had lost a fight with a cat.
>
>
>
> ----- Original Message -----
> From: "Stephen Offiler" <soffiler at gmail.com>
> To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
> Sent: Monday, August 08, 2016 8:36 AM
> Subject: Re: [AT] off topic some Angle Grinders
>
>
>> Absolutely.  As the cut gets deeper, it gets harder and harder to keep
>> them
>> square in the cut, and a snag becomes increasingly likely.  BTDT, often.
>> Cutting things like angle iron I always scribe both legs real deep and
>> then
>> go at each leg the flat way, so depth of cut is never more than the
>> thickness of the leg.  Of course cutting things in odd places (like rusted
>> bolts) all bets are off.
>>
>> SO
>>
>>
>> On Mon, Aug 8, 2016 at 8:03 AM, charlie hill <charliehill at embarqmail.com>
>> wrote:
>>
>>> The problem you usually hear with those discs (I call them cut off discs)
>>> is that they snag and shatter throwing pieces into flesh and eyes.
>>>
>>> Charlie
>>>
>>> -----Original Message-----
>>> From: Cecil Bearden
>>> Sent: Sunday, August 07, 2016 5:47 PM
>>> To: Antique tractor email discussion group
>>> Subject: Re: [AT] off topic some Angle Grinders
>>>
>>> It cold have been worse, I bo ught some of those 7in discs to cut with
>>> (0.045thickness),  from sportsman's guide on clearance.  I was going to
>>> try one of them, bu I would have had to find the wrench to take the big
>>> blade off.  In 55 years of working with these things, it is the first
>>> time one got me.
>>> cecil in okla
>>>
>>> On 8/7/2016 3:40 PM, Dennis Johnson wrote:
>>>> Cecil,
>>>>
>>>> Sorry about that. I got my left little finger when trying to sharpen
>>> mower
>>>> blades with the mower on trailer ramps. Was not using gloves. Just
>>>> thank
>>>> God it was not worse.
>>>>
>>>> Dennis
>>>>
>>>> Sent from my iPhone
>>>>
>>>>> On Aug 7, 2016, at 1:54 AM, Cecil Bearden <crbearden at copper.net>
>>>>> wrote:
>>>>>
>>>>> I am relating this to maybe save some of  you the pain and trouble I
>>>>> am
>>>>> in right now.   I was cutting bolts out of the rusted floorboard of my
>>>>> 93 IHC 4700  old OK dot truck..   Salt has eaten through the
>>>>> floorboard.   The bolts had to be cut out.  I was using a 4-1/2 in
>>>>> angle
>>>>> grinder, on my knees and holding myself u p with the right hand and
>>>>> using the grinder in my left.  My work gloves were in my other
>>>>> truck.....  When I switched off the grinder, I set it on the
>>>>> floorboard
>>>>> and the spinning blade hit the back side of the cab and jumped up
>>>>> about
>>>>> 3 inches and cut across the big joint of my thumb on my right hand.
>>>>> the blade was one of those 0.045in cutting blades. I can see the
>>>>> tendon
>>>>> that moves the thumb moving in the cut.  It will be a few days before
>>>>> I
>>>>> can get back to work, and I am right handed.
>>>>>
>>>>> I had safety glasses, but no gloves...    I was too busy to go get
>>>>> them..   Now with the bandage, i cannot really type, the way I make a
>>>>> living now, I write reports.   I have a bandage on the right hand like
>>>>> a
>>>>> boxing glove.   Don't make the same mistake I did, wear those gloves
>>>>> and
>>>>> safety glasses and shields.   The grinder had a shield, and was turned
>>>>> off.  If it had still been running, it would have been a lot worse.
>>>>> It
>>>>> was just winding down...
>>>>>
>>>>> End of rant!!
>>>>>
>>>>> Cecil in OKla
>>>>>
>>>>>
>>>>>
>>>>>
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