Let me explain what Pressure Die Casting Tool Manufacturing in India is. If you had a component that needed to be cast, you would decide where on the component to split it in half. Two steel blocks would then surround the component and meet flush around the component. Once you have decided where the split on the component is, you "remove" the component, and the space left is your die cavity. The molten metal must then enter a die tool through a runner/feed to enter the tool and enter the die cavity.