o Large lever for easy, effortless operation o Solid all-metal construction o Extendable, self-centering paper guides with 148 mm to 457 mm insertion width o Chromium-plated metal clamp bar o Exchangeable high-performance steel punching bits with a diameter of 6 mm o Punching of 4 holes possible by moving the paper stack to the outer positions of the paper guides o Easily removable transparent waste container .