2X faster press and slide button quickly adjusts lower jaw. Metal Injection Molding (MIM) precision parts deliver strength and exceptional performance. Right angle teeth grip in all directions for maximum bite. Multi-Groove Ratcheting System allows for precise positioning with twice the groove positions of traditional groove joint pliers. ProTouch grips provide extra comfort and reduce hand fatigue Ratcheting action allows GrooveLock to be adjusted from the open position up to the work piece by pushing the handle up - no need to press the button. Anti-pinch design prevents handles from pinching. Jaw capacity: 2-1/4"; groove positions: 16, pipe size: 1-1/2"