Keilim 13:2

A baker’s paddle whose spoon has been removed is still susceptible to ritual impurity because of its teeth; if the teeth are removed, it is still susceptible because of the spoon. A mascara applicator whose spoon was removed is still susceptible to impurity because of its point; if the point is removed, it’s still susceptible because of its spoon. A stylus whose nib was removed is still susceptible to impurity because of its eraser; if the eraser is removed, it’s still susceptible because of its nib. A ladle whose spoon was removed is still susceptible to impurity because of its fork; if the fork is removed, it’s still susceptible because of its spoon. The same is true of a spade’s spiky end. The minimum size for all these utensils to be susceptible is large enough to perform their tasks.

Keilim 13:3

A damaged hoe is still susceptible to impurity until the major part of it is missing but if the hole for the handle is broken, it is insusceptible. A hatchet whose sharp side has been removed remains susceptible to impurity because of its splitting side; if the splitting side is removed, it remains susceptible because of the sharp side. Once again, if the hole for the handle is broken, it is insusceptible.