KIT R-8-ER : The kit contains ER collet chuck with a Bridgeport shank and a set of collets in various bore sizes.
  DesignationStockSSQtyRange mmCSIGICATGIREMgiic
  KITR-810ER16 N/AR-8 100.5-10 ER16 4512033 0
  KITR-818ER32 N/AR-8 182-20 ER32 4512008 0

Each kit contains one collet chuck, a full set of ER collets and a Wrench.