Box-end wrench sets come with an enclosed head on each end of the handle that provides more contact to the fastener and allows more torque than an open-end wrench since the box end is less likely to slip off the fastener. These double-end wrenches have a different metric size on each end for use on two different size fasteners.

These box-end wrench sets have a double end and a different SAE (inch) and metric size on each end for use on two different size fasteners. Sets include both SAE (inch) and metric sizes. The enclosed head on each end of the handle provides more contact to the fastener and allows more torque than an open-end wrench since the box end is less likely to slip off the fastener.

Box-end wrench sets come with an enclosed head on one end of the handle and provide a more secure grip on the full length of the handle compared to a double end box wrench. The single end is metric size for use on one specific size fastener. The enclosed head has more contact to the fastener and allows more torque than an open-end wrench since the box end is less likely to slip off the fastener.

These box-end wrench sets come with an enclosed head on one end of the handle and provide a more secure grip on the full length of the handle compared to a double end box wrench. The single end is SAE (inch) size for use on one specific size fastener. The enclosed head has more contact to the fastener and allows more torque than an open-end wrench since the box end is less likely to slip off the fastener.