Before revision: 250 px|Two hammer tackers A Hammer tacker is a very simple device that has an approximately 30 mm (12 inch) handle and a head, which, when it comes into contact at high speed with a hard material, inserts a staple into said material.
After revision: 250 px|Two hammer tackers A Hammer tacker is a very simple device that has an approximately 300 mm (12 inch) handle and a head, which, when it comes into contact at high speed with a hard material, inserts a staple into said material.