Gedore RED Chisels & Punches Puncher 611919 - Gedore 3300822, Gedore RED manufactures the puncher with a 120 x 5 mm shaft and a diameter of 12 mm. This sturdy tool, ideal for precise metalworking and layout work, is part of the 8-EDGE series. The Gedore RED puncher is often used in workshops for marking drill points and aligning punch holes accurately. Gedore RED 3300822 Centre punch, octagonal, 120x12x5 mm