● Antrieb: Innensechskantschlüssel. ● Material: Stahl hochfest 12.9. ● Farbe:Schwarz. ● Verwenden : Haushalt, Wartung und Reparatur, Verwendung in der Leichtindustrie. ● The product is made of grade 12.9 high-strength carbon steel with high toughness, good cold and hot processing performance and excellent machinability.