On May 11, 5:02 pm, "Trevor Wilson"
<trevor@[EMAIL PROTECTED]
> wrote:
> I had to cut some 8mm steel yesterday and today. I dusted off my trusty
9"
> angle grinder and set to work. I wore out one wheel (Flexovit)and the
only
> one I had available was an 8" Flexovit (Aussie made). I wore it out in
short
> order. It's cutting performance was what I would term "satisfactory".
About
> 2cm/minute (best guess). I toddled off to Bunnings this afternoon to buy
> some more wheels. Unfortunately, the Flexovit wheels had the wrong size
> mounting hole, so I purchased a 5 pack of Trojan (Chinese made) branded
> wheels. Hopeless cutting performance. I mean, REALLY BAD. It took about
5
> minutes to cut 2cm. The wheel didn't wear down and faster or slower than
the
> Flexovit. It just hardly cut the metal at all.
>
> What gives?
>
> The technology is hardly state of the art. All wheels are rated for
ferrous
> metal cutting. Since most of my cutting is done with a 4" grinder, this
is
> not something I've experienced before. I've not experienced this sort of
> poor performance when cutting concrete, bricks and stone. Are all these
> Chinese wheels bad, or did I get a bad batch?
>
> The Torjans are going back on Monday. I doubt that I'll buy them again.
I've used a GMC drop saw with the appropriate very large
discs and the kit to line stuff up - they tend to work.
Angle grinder is for a different purpose, sure can use it,
however you would need to get the cut perfect. The metal
cutting drop saw is essential for getting welds right.
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