Ken-Tool Corp. has unveiled a patented wrench in SAE and metric versions that provides eight of the most popular wrench sizes in one tool. The company says its new 8-in-1 Wrench delivers strength, versatility and convenience in a 7-1/2 in. (19 cm), 12 oz. (0.3 kg) slim profile tool. The 8-in-1 Wrench is fabricated from cold-forged, high strength vanadium steel alloy. At the heart of the wrench is the "Slide-Twist-Slide" design to quickly change wrench sizes. To change the size, the user slides the carrier to the center, twists it 180 degrees and slides back to lock in place.