Powerful, symmetrical grip: the bionic grip combines the versatility of an adjustable wrench with the simplicity of Pliers. The open-ended head can access difficult to reach areas not accessible with a closed-headed wrench. Our patented bionic gripping technology distributes gripping forces over a larger work surface compared to the jaws of conventional Pliers. The interlock mechanism converts torque load into an intelligent locking feature. The multi-jaw grip minimizes distortion under load and is even great for softer materials, such as plastic, copper and brass. Versatile and easy to use: No tricky knobs or adjustments and fully adjustable with a one-handed squeeze. Save time with efficient ratcheting by releasing, then re-gripping the object. Instantly grips pipes, fasteners and fittings from 1/4 inch to 9/16 inch. Our wrench replaces 13 metric and SAE wrench sizes, spanning 1/4 inch to 9/16 inch and 7 mm to 14 mm. Comfortable for most sizes and abilities: the bionic grip wrench incorporates universal design features with enhanced ergonomics. The soft, double-thickness, cushioned handles fit large and small hands. With universal orientation, so our tool works in either hand in any position. An amazing gift: for your husband, dad, boyfriend, or anyone who loves DIY. Great for birthdays, Christmas, and other holidays for any handyman, father, men, or women. You won't know you need bionic wrench until you have one! Quality construction: All LoggerHead Tools are made in America and guaranteed Forever! Made with hardened, cold-rolled, steel-laminate construction. The industrial-quality, Black-oxide finish resists rust, corrosion, and chipping. Balanced spring action provides optimal control. Qs 9000 certified manufacturing