The charge was a pim for sharpening a plowshare or mattock, a third of a shekel for sharpening a pitchfork or an axe, and a third of a shekel for repointing an oxgoad.

1 Samuel 13:20
Instead, all the Israelites would go down to the Philistines to sharpen their plowshares, mattocks, axes, and sickles.

1 Samuel 13:22
So on the day of battle not a sword or spear could be found in the hands of the troops with Saul and Jonathan; only Saul and his son Jonathan had weapons.

Zechariah 13:8
And in all the land, declares the LORD, two-thirds will be cut off and perish, but a third will be left in it.

Yet they had a file for the mattocks, and for the coulters, and for the forks, and for the axes, and to sharpen the goads.