Astro Pneumatic Tool 7120 Ratchet & Release Flare Nut Wrench Set, 5 Piece (SAE) The strength of a ratcheting box end wrench with the accessibility of a flare nut wrench Smaller sizes feature a rocker pawl clutch for easily freeing wrench from line and flare nut Larger sizes feature a more robust design for more strength Set includes the most common automotive sizes: - 3/8", 7/16", 9/16", 5/8", 11/16" Patented ratcheting flare jaw mechanism