Reference for Kelim 13:2
קֹלִגְרִיפוֹן שֶׁנִּטְּלָה כַפָּהּ, טְמֵאָה מִפְּנֵי שִׁנָּהּ. נִטְּלָה שִׁנָּהּ, טְמֵאָה מִפְּנֵי כַפָּהּ. מִכְחוֹל שֶׁנִּטַּל הַכַּף, טָמֵא מִפְּנֵי הַזָּכָר. נִטַּל הַזָּכָר, טָמֵא מִפְּנֵי הַכָּף. מַכְתֵּב שֶׁנִּטַּל הַכּוֹתֵב, טָמֵא מִפְּנֵי הַמּוֹחֵק. נִטַּל הַמּוֹחֵק, טָמֵא מִפְּנֵי הַכּוֹתֵב. זוֹמָא לִסְטְרָא שֶׁנִּטְּלָה כַפָּהּ, טְמֵאָה מִפְּנֵי הַמַּזְלֵג. נִטַּל הַמַּזְלֵג, טְמֵאָה מִפְּנֵי כַפָּהּ. וְכֵן הַשֵּׁן שֶׁל מַעְדֵּר. שִׁעוּר כֻּלָּן, כְּדֵי לַעֲשׂוֹת מְלַאכְתָּן:
A <em>koligrifon </em> [tool with one end for placing bread into, and removing it from, the oven, and the other end for raking coals] whose spoon has been removed is susceptible to impurity on account of its teeth [of the rake end]. If its teeth have been removed, it is still susceptible on account of its spoon. A <em>mikchol</em> [used for cleaning out ears and applying eye makeup] whose spoon is missing is susceptible to impurity on account of its point; if its point was missing, it is still susceptible on account of its spoon. A stylus whose writing point is missing is susceptible to impurity on account of its eraser; if its eraser is missing, it is susceptible on account of its writing point. A <em>zoma listra</em> [kitchen tool with a ladle at one end and fork at the other] whose ladle is removed is susceptible to impurity on account of its fork; if its fork is missing, it is susceptible on account of its ladle. So too with regard to the prong of a mattock. The minimum for all these instruments [to render them subject to ritual impurity]: so long as they can perform their usual work.