[AT] off topic some Angle Grinders

Mon Aug 8 11:23:49 PDT 2016

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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