The Martin Sprocket & Gear MRTBLKBC24 Martin Forged Alloy Steel 3/4" Opening Flare Nut 3/8" Drive Crowfoot Wrench, 12 Points Standard, 53/64" Length of Centers, Industrial Black Finish is a quality tool that is perfect for use in industrial settings. This wrench is made from forged alloy steel and features a 3/4" opening flare nut that is 3/8" drive. The crowfoot wrench has a 12 points standard and is 53/64" long. The industrial black finish on this wrench is perfect for use in any industrial setting.