Steel: vanadis 4extra superclean (uddeholm). Thickness: 4.56 mm. Genuine calf leather sheath is included and laser engraving is free. We can engrave name, date, logo or any vector graphics that you mailed us. (we also accept custom orders). All of our knives are handmade by ourself and designed for a lifetime use while all of them have a cool look, they are all durable work knives. We use profesional equipments, high quality steels, best handle materials. We are already pioneer company of custom knives and knife making supplies at turkey. We have a partnership with voestalpine turkey (böhler&uddeholm) our knives can be great gift choice for him/her. Feel free to contact with us anytime. Vanadis 4 extra superclean is a powder metallurgical cold work tool steel offering an extremely good combination of wear resistance and ductility for high performance tools. Vanadis 4 superclean is a chromium-molybdenum-vanadium alloyed steel which is characterised by. High abrasive-adhesive wear resistance. Good dimensional stability during heat treatment. Very good through-hardening properties. Good temper back resistance. Good machinability and grindability. This item is made of vanadis 4e steel, figured brass, micarta, g10 spacers, stabilized wood and calf leather.