Corner Guide – 3xSet

A miter jig, also known as a corner guide, is a bookbinding tool that helps you create clean, even corners when turning in cover material over the edge of a book board. It takes the guesswork out of trimming corners and helps prevent bulky, uneven folds.

This tool is especially useful when working with:
• Book cloth
• Paper covers
• Decorative wrapping papers
• Thin leather or faux leather

By placing the jig at the corner of your board, you can quickly and accurately trim away excess material before folding. This creates a neat diagonal cut that allows the material to fold smoothly around the corner without bunching or gaps.

Using a corner guide helps:
• Keep all four corners consistent
• Reduce trial-and-error trimming
• Improve the finished look of your covers
• Save time when making multiple books

This set includes three sizes to suit different board thicknesses and cover materials:
• 2mm
• 2.5mm
• 3mm

Having multiple sizes allows you to match the guide to your board thickness for better results, whether you are working with thin paperboard or thicker book board.

Ideal for beginners who want reliable results and experienced binders who want speed and consistency.