versace brown eyeglasses|where to buy versace sunglasses Method 1: Using a Power Drill. The next best method to a hole punch is using a power drill. For this, you’ll need a power drill and a drill bit that matches the size of your existing belt holes. If you’re crafting a leather belt, you can use drill bits that are between 4mm (5/32 inches) to 6mm (15/64”). Important Tips. Subscribe