What is That Little Hole At The Bottom of a Padlock For? (Page 2 ) | July 26, 2025

Other Everyday Things With ‘Hidden Features

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

Knowing how to work on cars is a helpful skill, especially with the rising number of vehicles on the road. Yet most mechanics agree that working on cars can be tough because of the small space and crevices that must be maintained. Fortunately, most screwdrivers can be slid into a wrench to help reach those small spaces.

Color Swatch on Clothes

Clothing once came with a color swatch. While some still do, depending on their quality and materials, few people know why. There are a few reasons. First, these swatches make it easy to color-match fabrics or threads when clothing becomes ripped or damaged. Moreover, these color swatches can be used to test how certain products, like laundry soap, will impact the item’s color. Essentially, those little swatches are a tester piece of fabric that matches the outfit, so the buyer will know how to properly care for their clothing.

Brass Padlocks and Doorknobs

Brass is known to be anti-bacterial so it’s a popular metal for doorknobs, stair railings, padlocks, or other things people touch regularly.

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