(just noticed your location and maybe that explains the "thrift")
no ta me bums nipping at the thoughton a proper note, angle grinders.
very bad if you dont respect them, as you should all power tools.
a friend of mine had a 7" grinder but only had 9"discs so took the gaurd off to fit the oversized disc, ayway to cut a long story short the grinder bit back right across his rist and he were in stoke mandeville for two week!!
pictures availible if anyone wants.