What Are The Ratchet Sizes?

What Are The Ratchet Sizes? Common ratchet sizes include 1/4-inch drive, 1/2-inch drive and 3/8-inch drive. Having different socket wrench sizes will allow you to operate different socket sizes based on your particular needs. Most ratchets use a geared drive. What are the socket sizes in order? There are four common socket sizes: 1/4 inch