Ratcheting combination wrench sets come with a box end design on one end of the handle with a gear mechanism that allows the wrench to rotate freely in one direction without removing the wrench head from the fastener and repositioning the wrench. These combination wrench sets provide multiple head sizes so they can be used with a range of fasteners. The box end fits around and grips the entire head of the fastener for more contact than an open-end wrench and can apply more torque since the box end is less likely to slip off the fastener compared to an open end design. The opposite end of the wrench has an open end design that allows top and side access to the fastener while the box end can only access a fastener from the top.