On 07/21/2014 11:44 AM, Stuart Stevenson wrote: > Gentlemen, > my experience dictates > "DO NOT TRUST KEYS TO ALIGN VISES AND HOLDING FIXTURES!!!!!!!" > always verify the alignment with appropriate precision devices > Yup, I agree! if the keys were tight enough to get a few tenths alignment from end to end on the vise jaw, it would be hard to put the key into the slot. Also, my understanding of the way the slots are made in at least some machines is the slots are milled first, then the dovetails are cut (or scraped-in on a high-end machine.) So, the slots are not guaranteed to be parallel to the table travel. They will be close, but not perfectly parallel.
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