Never, never, never be tempted to do something like this.
I experienced this issue myself. On a ship I was serving on we had a hand-held grinder that the 4th Engineer used inside the main engine cylinder during maintenance. Unknown to us, the spare grinding wheels we had been supplied with in Japan were rated for a lower speed - with the details all in Japanese we couldn't read the warnings - and the wheel shattered inside the cylinder where the 4th Engineer, incredibly luckily, only suffered broken legs and lacerations with no injury to his upper body or head.
In hindsight we were able to decipher the speed ratings and scrapped all the wheels we had been supplied, while the 4th Engineer was airlifted to an Italian hospital and made a full recovery. However, since then I have always been slightly nervous of grinding wheels and check the speed rating of any that look new.
I experienced this issue myself. On a ship I was serving on we had a hand-held grinder that the 4th Engineer used inside the main engine cylinder during maintenance. Unknown to us, the spare grinding wheels we had been supplied with in Japan were rated for a lower speed - with the details all in Japanese we couldn't read the warnings - and the wheel shattered inside the cylinder where the 4th Engineer, incredibly luckily, only suffered broken legs and lacerations with no injury to his upper body or head.
In hindsight we were able to decipher the speed ratings and scrapped all the wheels we had been supplied, while the 4th Engineer was airlifted to an Italian hospital and made a full recovery. However, since then I have always been slightly nervous of grinding wheels and check the speed rating of any that look new.
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