ישעיהו מד:יב פירוש: רש״י ואבן עזרא

The ironsmith a smith of iron.

חָרַשׁ Smith. In the construct state the ר has Pathah, in the absolute it has Kamez, without exception.

an axe Heb. מַעֲצָָד. That is one of the tools of the blacksmiths.