Writing iron
Scripture iron are smaller versions of Beizeisen or Schlageisen and serve to hew out of stone inscriptions.
They have a forged cutting edge or one made of hard metal. Lettering irons for soft stone are driven with the billet and are therefore provided with a billet head (widening) at the end of the striking. When used on hard stone , the writing irons have a hammer head and a writing hammer is used. It has a weight of 500 to 600 grams. There are also variants for operation with compressed air-driven type hammers. Common cutting edge widths of lettering irons are: 4, 6, 8, 10, 12, 14, 16, 18 mm.