1 Samuel 13:20-21

20But every one of the Israelites went down to the Philistines to sharpen his plowshare, his mattock, his axe, or his sickle,
Septuagint; Hebrew plowshare
21and the charge was two-thirds of a shekel
Hebrew  was a pim
for the plowshares and for the mattocks, and a third of a shekel
A  shekel was about 2/5 ounce or 11 grams
for sharpening the axes and for setting the goads.
The meaning of the Hebrew verse is uncertain

Proverbs 25:18

18A man who ebears false witness against his neighbor
is like a war club, or fa sword, or a sharp arrow.

Isaiah 7:25

25 gAnd as for all the hills that used to be hoed with a hoe, you will not come there for fear hof briers and thorns, but they will become a place where cattle are let loose and where sheep tread.

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