Astro  9730 8-Inch Self Ratcheting Adjustable Wrench Patented self ratcheting function allows for fast reversing of fastener without having to lift wrench Easy on/off switch allows wrench to be used with self ratcheting function or as standard wrench Ideal for space and hard to reach areas Saves time and energy and ergonomically designed rubberized handle provides comfort and extra grip High torque exceeds ASME breaking test standards 150-Percent and made of Cold Forged Chrome-Vanadium (6140) material strength endurance Patented self ratcheting function allows for fast reversing of fastener without having to lift wrench Easy on/off switch allows wrench to be used with self ratcheting function or as standard wrench Ideal for limited space and hard to reach areas Saves time and energy and ergonomically designed rubberized handle provides comfort and extra grip High torque exceeds ASME breaking test standards 150-Percent and made of Cold Forged Chrome-Vanadium (6140) material strength endurance