Get the right wrench for the tubes you use. There are several different types of choke tube wrenches to use with Browning Choke tubes. Since Invector Invector-Plus and Invector-DS have different choke designs it is important to select the correct wrench for removing and reinstalling your shotgun’s chokes. 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. – Choke Gauge: 28 – Weight: 3.2 oz