- Mould opening tool: The mould opening knife with recess reset has a built-in spring return. It produces clear, complete indentations on both normal copy paper and coated paper without damaging the sheet. - Adjustable recess depth: The recess depth is adjustable. Use a 13 mm Allen key to raise the screw for deeper recess or lower it for a flatter recess, then tighten the nut to lock. Balance left and right indentations so the upper and lower wells fully align. - High quality and portable: Aluminum alloy molded edges with magnetic, movable paper stop strips for precise positioning. Removable folding handle; the handle bar is threaded and can be removed and replaced. The die is replaceable to press dents of different widths. - Simple and durable: Compact and easy to use and maintain, making it a practical support tool in the binding process. It works with coated paper, leather paper or photo paper to produce clear markings. - Use scenarios: In binding finishing to create consistent indentations; when working with coated, leather or photo paper to mark or press dents; for interchangeable dies to accommodate different dent widths in finishing tasks.