Crimp and Insertion / Extraction Tools - MH Connectors The Hand Crimp Tool from MH Connectors, stock number 765-9426 , is used for Crimp Contacts stock numbers 719-5833 and 719-5824 with a limiting Wire Size of 22-26 AWG only. The Insertion and Extraction Tool from MH Connectors, stock number 765-9435 , is used for Crimp Contacts stock numbers 719-5833 and 719-5824 .