We are looking at a collet holder for an Ultron Snap-Change System for a Bridgeport, or R8 spindle. This toolholder accepts DA 180 collets. There are 9 collets that come with this holder.1) 1/16 2) 3/32 3) 1/8 4) 3/8 5) 21/64 6) 19/64 7)39/64 8) 11/16 9) 3/4 Note: the 3/4 collet is in poor shape and would require pressing an end mill in place with force.
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