Plews 70-715 Bi-Directional Filter Wrench 2-way filter wrench removes and installs oil filters Fits most domestic and imported cars and trucks Designed to fit where standard wrenches cannot Use with 3/8 inch square drive or 7/8 inch open/combination wrench Fits 2-13/16 inches to 3-5/32 inches; 71 millimeters - 78 millimeters