Talmud do Kelim 14:10

HALAKHAH: 6. “Bone to fill a spoonful¹⁹A unit of volume for medical prescriptions.; Rebbi Jehudah says to make a tooth of a key.” What is חָף? A key¹⁰⁵It seems that the root is شرج “to lock”.. There, we have stated:¹⁰⁶Mishnah Kelim14:8. The argument is the same as explained in Note 102. “If the teeth were taken, it is impure because of the holes. If the holes were covered, it is impure because of the teeth.” It seems that Rebbi Jehudah’s argument is inverted. There he calls חָף a protrusion¹⁰⁷Reading בלוט for כלוט. The question really is not about R. Jehudah but about the interpretation given here to his statement. Therefore no answer is needed. and here he calls it a key.