Designed to lock the camshafts in their required timed position. Ideal for timing, adjustment and arresting of the camshaft on engines. Ensuring proper alignment of the cams or camshaft. Fits in perfectly and easy to operate. Sturdy and reliable tool due to high quality steel. For GM series engines of 1.6L and 1.8L capacity. Or for Chevrolet,for Fiats, for Alfa Romeo 2003 – 2012 16V. Material: Steel Engine capacity item is suited for: 1.6L and 1.8L .