Instruction Getting Started With a Tool Post Grinder
I would use the slug on the master jaws if possible. Select a slug of a size that puts the chuck jaws at a size where you most use the chuck. Wear in the scroll and the "T" slots of the chuck body will change the way the jaws grip in different positions...If most your work happens in the 1" range try to grind the jaws set close to that size.
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