וַיַּרְאֵ֣נִי יְהוָ֔ה אַרְבָּעָ֖ה חָרָשִֽׁים׃
And the LORD showed me four craftsmen.
Rashi on Zechariah
four craftsmen Carpenters who know how to saw the horns. And our Rabbis explained in tractate Sukkah (52b) who they are.
וַיַּרְאֵ֣נִי יְהוָ֔ה אַרְבָּעָ֖ה חָרָשִֽׁים׃
And the LORD showed me four craftsmen.