A kaligryphon whose spoon was removed is tamei on account of its teeth. [If] its teeth were removed, it is tamei on account of its spoon. An applicator whose spoon was removed is tamei on account of its tip. [If] the tip was removed, it is tamei on account of its spoon. A stylus whose nib was removed is tamei on account of the eraser. [If] the eraser was removed, it is tamei on account of the nib. A zomalystera whose spoon was removed is tamei on account of the fork. [If] the fork was removed, it is tamei on account of its spoon. And the same applies to the teeth of a tiller. The measure for all of these is [as much as is necessary] in order to do their work.

A blade that was damaged is tamei until the majority of it is removed. [If] its socket broke, it is tahor. An ax whose broad blade was removed is tamei on account of its splitting blade. [If] its splitting blade was removed, it is tamei on account of its broad blade. [If] its socket broke, it is tahor.