Abstract: Various embodiments of face shield assemblies for hard hats are provided. The face shield assemblies include structures that block, control, or capture dust and debris to reduce the amount of dust or debris that falls onto the wearer's face during use. Some embodiments of the face shield assemblies include a hinge that includes a pivot projection having pivot wings that are inserted into a slot of a pivot receiver.

Abstract: A tool with a pivoting head is shown. The tool includes a locking mechanism that allows the angular position of the head to be locked securely in place once selected by a user. In a specific embodiment, the locking mechanism includes a locking channel positioned in a generally parallel orientation to the axis of rotation of the pivoting head. In a specific embodiment, the locking mechanism includes a biasing component positioned in a generally parallel orientation to the axis of rotation of the pivoting head. The locking mechanism may be used with a variety of tools, such as ratchet wrenches, that allow for repositioning of the head relative to the handle of the tool.