The newest additions to the Cobra line from Matco are the PC22 King Cobra Adjustable Water Pump Pliers. These pliers are 22" long and have a jaw capacity of up to 4.5/8" wide. The King Cobra: Has an effortless push button memory lock for fast and easy jaw adjustments. Features parallelogram-shaped jaws that grip on to all sides of the workpiece. Includes a handle, which helps eliminate finger pinching. Has teeth which are specially hardened (approximately 62 Rockwell) for a secure grip.