פירוש על כלים 13:3

חרחור (coulter, inserted into the horizontal pole/מרדע in front of the ploughshare/דרבן ) – a vessel made like a hoe that we dig up the ground, and its iron is more pointed/sharp to sever the roots so that it will not detain the plough.

A harhur that is damaged is still susceptible to impurity until its greater part is removed. But if its shaft-socket is broken it is clean. A harhur is the iron vessel into which an ox-goad (see 9:7) can be placed in order to dig and to remove dirt from a plow. It is susceptible to impurity even if damaged, as long as its shaft-socket, the opening into which the ox-goad is placed, is intact.

שינטל רובו – most of the iron or most of the steel-coating of the cutting tools/steel-edge.

A hatchet whose cutting edge is lost remains susceptible to impurity on account of its splitting edge. If its splitting edge is lost it remains susceptible on account of its cutting edge. If its shaft-socket is broken it is clean. The head of the hatchet has a thin side for cutting and a thick side for splitting wood. If either side remains usable, it is still susceptible. If the shaft-socket, the hole into which the head is affixed, is broken, the entire hatchet is unusable and it is pure.

מקופו (the eye of the coulter for the insertion of the horizontal pole) – a hole in which they insert the handle/helve like [Talmud Berakhot 55b]: “the hole of the needle.”

טהור – for further it is not appropriate for work since one is not able to bring in a handle.

קרדום (hatchet) – that is pointed/sharp and cuts from its two sides. The one side is wide and carpenters use it and it is called its cutting edge. The Aramaic translation of the strigil is called its cutting edge. But the second side is short and it is called that part of the spade (or shovel) that is used for chopping, because it is on that side that homeowners cut/split wood. And in the Gemara in Tractate Betza [folio 31b] it calls the wide side its broadside of a double tool. But the short side is called the thin and pointed side of the double tool [of the hatchet used for splitting].