"Michael C" <mike@[EMAIL PROTECTED]
> wrote in message
news:48269731$0$17507$afc38c87@[EMAIL PROTECTED]
> "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?
>>
>> The Torjans are going back on Monday. I doubt that I'll buy them again.
>
> The 4 inch grinder with those super thin cutting wheels would do a lot
> better than 2cm/minute.
**I did use the 4" Bosch for a small cut. It took forever. 8mm steel needs
a
lot more grunt than a 4" grinder. Still, I was only using the standard
cut-off wheels. How thick are the "super thin" cutting wheels? I used the
4:
grinder to clean up the edges.
Trevor Wilson
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