The Boehm JLBM20 hand chuck securely holds hollow punches from 2–20mm, providing stable, controlled cutting for gasket materials, rubber, leather, card and soft plastics. Its precision-machined body grips punches firmly while maintaining excellent concentricity, ensuring clean, reliable hole punching. Compact and versatile, it is ideal for workshops needing a robust, general‑purpose punch‑holding solution.