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- Sep 29, 2014
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Aluminum jaws are useful for holding steel parts that you do not want to leave any marks on from chucking and usually cost less. When you turn the ID of soft jaws place a short round in the hard jaws behind them, do not turn them with the scroll loose.
Pie jaws are great for holding very thin parts which tend to chatter between narrow jaws, I use 12" jaws on an 8" chuck for repeat parts that are 8" in diameter and finish at 1/8" thick from about 7" to the center, these always chattered in regular jaws unless ran very slowly.
Pie jaws are great for holding very thin parts which tend to chatter between narrow jaws, I use 12" jaws on an 8" chuck for repeat parts that are 8" in diameter and finish at 1/8" thick from about 7" to the center, these always chattered in regular jaws unless ran very slowly.