A padlock is a common item that serves a major purpose. People use them for their bikes, outdoor sheds, toolboxes, and gates. They re designed to withstand the elements and attempts to damage or cut them. However, they have a secret feature, a small hole on the bottom, that also serves a major purpose.

Serving an Important Functionn

Alternative to the Padlock Hole

While the padlock’s tiny hole feature was once revolutionary, weatherproof padlocks are also on the market. This design ensures a padlock will continuously ensure your belongings are safe all year round.

Another Reason for the Padlock

Design

In addition to safety from rusting, the tiny hole on the bottom of a padlock fulfills another important role.

Sometimes, the padlock may become stuck or unable to open, even with a key or correct code. As such, the hole can be lubricated synthetically to help the padlock pop open.

Padlocks aren’t the only thing that has been designed with secret or hidden features. Here are a few other handy items that serve multiple purposes.

Screwdrivers as Wrenches