Bookbinding Corner Miter Ruler (AllInOne 2-3.5mm)

📏 DescriptionThis ruler is the ultimate precision tool for bookbinding and box making (cartonnage). Unlike individual loose corner jigs that get lost easily, this "All-in-One" ruler consolidates all the necessary spacing guides into a single, easy-to-handle instrument.It allows you to trim the excess paper or fabric at the perfect 45° angle, leaving the exact amount of material needed to wrap around the cardboard corner for a professional finish.⚙️ Included Sizes (Board Thickness)The to