Description [VERSATILE METRIC SIZES] Featuring six commonly used sizes 10mm, 12mm, 13mm, 14mm, 15mm, 17mm, this tubing ratchet wrench set covers a wide range of tasks, ensuring you have the right tool for any job. [OPEN END DESIGN] One end is an open-end wrench, and the other end is an open-end and flexible head ratchet wrench, catering to your various needs and making tight space screw tightening easier. [PROFESSIONAL APPLICATIONS] Ideal for tightening closed circuit nuts in air conditioning and brake lines, this tubing ratchet wrench protects delicate copper nuts from damage, ensuring integrity and precision in critical systems. [RATCHET ADVANTAGE] With a ratchet mechanism at one end, this wrench reduces the need for tool removal between turns, saving time and effort in tight spaces. A mere 5° swing arc engages the ratchet for faster, more efficient work. [FLEXIBLE DESIGN] Revolutionize your toolkit with this ratchet tubing wrench, designed to reach tight spots effortlessly. for turning hard-to-reach bolts quickly and easily, ensuring access to every bolt.