New Chicago Pneumatic Vane Pack (Set of 4) for CP Ratchet Models, Part # KF138202.  Vanes will wear out over time due to usage and make the gun seem weak, these must be replaced into the rotor in order to get strength back to the gun.  This vane set of 6 will work on the CP Models below.  These are not a stock item and will ship in about 5-7 business days.  Please feel free to let us know if you have any questions.  At Piedmont Tool we understand that time is money and your tools help you make money faster, so we strive to get your item shipped quickly to minimize your downtime.  Thanks and let us know if you need any other parts we may not have listed.