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Precision tapered flats in collet, arbor body and expander.
Precision ground flats remain in constant contact.
Drive transmitted through mating flats.
Assures part seating and squaring-up on locating face.
Operating pressure increased through tapered flats.
Built in safety stops control collet expansion and contraction.
Locates a tapered or straight bore on center.
Collet pre-load assures fast, easy part removal.