KIRIS (Key Impeller Removal & Installation System) was invented by Key Pump and Gear, LLC.   The system was designed to insure proper removal of the impeller to prevent damage to the vanes. The tool is designed so that it engages multiple points along multiple vanes of the impeller, distributing the force applied when removing or assembling the impeller.  This distribution of pressure ensures that an impeller is never distorted or imbalanced due to excessive strain placed on a single vane.  This tool is used in the assembly phase of a rebuild to ensure the impeller is properly seated and torqued to help prevent leakage past the impeller gasket thereby eliminating the chance of liquids getting into the threads of the impeller which could cause damage to both impeller and the shaft.

The input shaft sockets are designed to properly hold the drive end of the pump shaft while removing or installing the impeller.  This tool is designed to apply enough torque on the shaft to properly install or remove the impeller without scoring or otherwise damaging the input shaft or impeller.  The input shaft socket set is compact enough to be stored in the mechanics tool box so they are always handy.  The input shaft sockets are designed to be used only with the mechanics hand tools (combination wrenches, Crescent wrench, etc.) to tighten or loosen impellers from the shaft.  The wrenches and sockets are made of high quality steel for long tool life when properly cared for.