Connecticut Custom Fire Training can modify your channel lock pliers to function as a multi-purpose thru-the-lock tool. With the modified Channel Lock you can easily pull a cylinder and manipulate various locks including most mortise & rim locks. With the custom key tool end you will be able to easily manipulate the Narrow Stiles mortise lock which is common on most store front doors. With these pliers your entry will be swift & efficient, with virtually no damage done to the establishment.