'Threshing sledges' in the Bible

And Gideon will say, For this in Jehovah's giving Zebah and Zalmunna into my band, and I threshed your flesh with thorns of the desert and threshing-sledges.

And he will take the old men of the city, and thorns of the desert, and threshing sledges, and with them he caused the men of Succoth to know.

He also brought out the people who were there, and put them to [work with] the saws and sharp iron instruments and iron axes, and made them work at the brickkiln. And he did this to all the Ammonite cities. Then David and all the men returned to Jerusalem.

And Araunah said to David, Let my lord the king take and offer up that which is good in his sight: see, here are oxen for the burnt-offering, and the threshing-sledges and implements of the oxen for wood.

and, the people that were therein, brought he forth, and cut with the saw and with threshing sledges of iron and with axes, thus also, used David to do unto all the cities of the son of Ammon, - and David and all the people returned to Jerusalem.

And Ornan said to David, Take it to thee, and let my lord the king do that which is good in his sight: see, I give the oxen for the burnt-offering, and the threshing-sledges for wood, and the wheat for the oblation; I give it all.

This is what the Lord says: "Because Damascus has committed three crimes -- make that four! -- I will not revoke my decree of judgment. They ripped through Gilead like threshing sledges with iron teeth.