This 6 piece GearWrench set is a must-have for any automotive tool collection. The wrenches are designed to fit flare nuts and have a 6-point drive type. The set includes sizes from 1/4 in x 5/16 in to 3/4 in x 7/8 in, and all pieces come in SAE measurements. Made by GearWrench, this set is of high quality and is perfect for any level of mechanic. The manufacturer part number is 81907.