'Threshing sledge' in the Bible

And the people which were in it he brought forth, and he will put at the saw and at the threshing-sledge of iron, and at axes of iron, and caused them to pass over through the brick-kiln: and thus he will do to all the cities of the sons of Ammon. And David will turn back, and all the people, to Jerusalem.

Araunah said to David, "Let my lord the king take and offer what [is] good in his eyes. Look, here [are] the cattle for the burnt offering and the threshing sledge and the yokes of the oxen for the firewood.