"Trevor Wilson" <trevor@[EMAIL PROTECTED]
> wrote in message
news:68ngffF2u28orU1@[EMAIL PROTECTED]
>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?
Dunno, but for 8mm I probably wouldn't use an angle grinder in the first
place. A wet saw is much better for that sort of work. Save the angle
grinder for grinding, or cutting thinner steel - say up to 3mm.
--
Kwyj.
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