I know it's a stretch, after finding out how old this grinder must be, To locate an operators manual. But any info would be appreciated. I did obtain a copy of the SO model manual from a very nice person in our group, Thank you, But the GSO pre dates the SO and it is a lot different. The collets are a different size as well. My machine has a .250 collet which could be tweaked to
except .125" cutters without defacing this museum piece, but I'm still not sure how to set it up to grind cutters.