Astro Pneumatic Tool 7120M Ratchet & Release Flare Nut Wrench Set, 5 Piece (Metric) 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: - 10mm, 12mm, 13mm, 14mm, 18mm Patented ratcheting flare jaw mechanism