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Brand new Heavy Duty 5/8 key less drill chuck for Shopsmith MARK VII Power Pro   

This chuck is a large size real drill press key less chuck.  Not one of those half plastic Jacobs hand drill chucks screwed onto a buffing wheel arbor those others are selling on Ebay.  This chuck is larger than the old original shopsmith chucks the 10ER came with.   No more slipping drill bits.  Large jaws tightens on bits with little effort.