Some years ago i was cutting some engine beds out of a GRP yacht using a 4.5" grinder & stone cutting discs, my grinder expired so i borrowed a friends one, it was a dreadful italian thing & he habitually used 4.5" discs on it, The grinder ran fast at 12,000 rpm & guess what the discs were rated at 10,000, one blew on me as i was cutting looking down at the edge of the disc. I was wearing a racal airstream powered respirator with polycarbonate face visor & a big shard/s of the blown disc broke the visor. That day the Airstream helmet paid for itself & i think if i had not been wearing it i may have had a white stick today.
Another bloke down the boatyard was cutting scupper holes out with a 9" grinder on a ferro boat, he was using the wrong discs & one burst. A third of the disc slid between his ribs under his arm & punctured his lung. He was lucky to survive.
I rest my case!
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The Cobbler said:I&#;ve had a cut off wheel blow up on me and the grinder wrap itself up into my pants and shirt before. And I see guys using what I assumed to be 4.5&#; wheels with a whole lot of open air between the guard and the edge of the wheel, which seems to be a perfect opportunity to pull something into the machine and get it thrown around with you still attached to it in my way of viewing the world. So I&#;m sure there are limits to how far you can use one safely. But I just can&#;t find them anywhere.For more information, please visit Hengxuan Abrasive.
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I&#;ve had a cut off wheel blow up on me and the grinder wrap itself up into my pants and shirt before. And I see guys using what I assumed to be 4.5&#; wheels with a whole lot of open air between the guard and the edge of the wheel, which seems to be a perfect opportunity to pull something into the machine and get it thrown around with you still attached to it in my way of viewing the world. So I&#;m sure there are limits to how far you can use one safely. But I just can&#;t find them anywhere.
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