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.
Jewish Publication Society of America Version (JPS1917) - 1 Samuel 13:21 >And the price of the filing was a pim for the mattocks, and for the coulters, and for the forks with three teeth, and for the axes; and to set the goads.