I have the same Sunnen VGS20 machine and really like it . Wish it had a little more throat space for some operations like guide liners on some heads. I have the older Sunnen valve grinder and it is not centerless so I have to dial indicate every valve stem before grinding. Takes some time but does a nice job. Paul, have you tried the Joe Mondello signature cutters he developed a few years before his passing? I think they are just great for many applications and available from Goodson. A nice selection of 50 and 52 degree cutters there.
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