Metal upholstery stapler Designed for fast joining of various materials such as wood to fabric, cardboard, paper or leather Used in upholstery, roofing, decorating, building finishes, etc Connects materials by means of a steel staple driven in with great force The stapler is designed to drive typical steel rectangular staples in the length range from 4-8 mm Stapler with adjustable striker spring pressure - adjustable impact force.