Screwdriver’s Second Function: The hexagonal bolster (the metal ring between the handle and shaft) on many quality screwdrivers is not merely for strength. It is precisely sized to be gripped by a wrench. This allows you to apply tremendous rotational force in tight spaces where your hand cannot turn the handle, transforming the tool for stubborn, seized, or recessed fasteners.
The Mysterious Fabric Swatch: Those small, unattached squares of material included with new clothing are wear-and-care test samples. Before subjecting the entire garment to a new detergent, bleach, or washing
