This is the heart of your tool set. Unlike wrenches or sockets, there is no different tool for each size fastener. This tool will take the brunt each time you use a socket. This is no place to pinch pennies. There are three primary considerations with a ratchet. The first, is how well it fits in the your hand. Some ratchets use a basic steel handle with a shape designed to feel comfortable in the hand. Others use a plastic handle so that when working in a cold shop or hot engine, the heat is not transferred to your hand.