How should wrenches be applied to minimize slipping off the work?

Using wrenches by pushing, rather than pulling, is the preferred technique to minimize the risk of slipping off the work. When a wrench is pushed, it allows the user to maintain better control and leverage over the tool. This pushing motion engages the full weight of the user's body into the task, which can help to stabilize the tool against the fastener, thereby reducing the chance of the wrench slipping off.

In contrast, pulling on a wrench can create a tendency for it to slip out of position, particularly when dealing with heavy loads or tight fittings. This can also lead to awkward body positions and increased risk of injury if the wrench suddenly comes loose. Therefore, pushing is the safer, more effective method for ensuring a secure grip on the workpiece.

The idea that wrenches can be used in any type of motion contradicts the principles of safe tool handling and may lead to inefficiencies or hazards during operation, making this approach less desirable.