Get the right wrench for the tubes you use. There are several different types of choke tube wrench to use with ypur Browning Choke tubes. This wrench does it all, working with every Browning 12 gauge shotgun. It works with all systems: Invector, Invector-Plus, and Invector-DS. Many extended tubes are easy to remove with fingers, but most have the wrench slots hidden on each side that accept the correct gauge wrench. Always be careful not to damage the slot end of any Browning choke tube when removing or inserting with a wrench.