Double cast-iron body with 3–5 mm wall thickness. Lower section: U-shaped sole, 90 mm long, 55 mm wide at the top, 26 mm and 23 mm wide below. Front filed at 35°. In the centre a 20 mm long, 12 mm round lug with M6 thread and side ribs. Upper section: Cast piece 101 mm long, 22 mm wide and 14/36 mm high. Open above, with ribs extending down to the 6×36 mm cap-iron rest. Top rear: 12×8 mm slot with 6 mm screw, metric 60° thread DIN 13/14 1.0, allowing both parts to be joined and adjusted. Mouth 1–8 mm. Lever cap 53×14×5 mm with 5 mm screw and matching 0.8 thread. Original green and red paint.

Iron: 27 mm, tang 15 mm     Cutting angle: 35–40°

Mark: KUNZ (in rectangle)