A belt hole puncher is a leather punch tool designed specifically to add holes to a belt to adjust its size. Adding holes provides more adjustments for the belt buckle, modifying the belt to fit around bigger or smaller waistlines.
Some models of belt hole punchers are designed to create metal eyelets in the belt by pressing grommets into the leather while the hole is punched, which creates a stylish hole for the buckle or inserts studs for decorative purposes. Holes created by these tools fall between 1 and 6 millimeters.
Leather punch tools can also be used for other fabrics and materials, such as plastic, denim, cardboard and canvas. They are also frequently used for other leather crafts or repairs, such as for shoes and wallets.