This hand device, sometimes common from polished animal bone, although typically from supplies like Teflon or dense plastic, is indispensable within the creation and restoration of books. It’s used to create sharp, crisp folds in paper or card inventory, burnish surfaces, and support in adhering supplies collectively easily. For example, it permits a binder to realize a exact fold when making a pamphlet or signature for inclusion in a bigger ebook.
The instruments significance lies in its capability to reinforce the standard and longevity of a sure quantity. Correctly creased folds lead to pages that flip extra simply and lay flatter, contributing to the general aesthetic and consumer expertise. Traditionally, its use dates again centuries, predating fashionable adhesive applied sciences, and demonstrating a elementary understanding of fabric manipulation in ebook development. Its enduring utility displays its capability to carry out duties which might be tough to copy with different devices.