齒科 (Khí-kho)的 (ê)轉踅 (tńg-se̍h)切削 (chhiat-siah)工具 (kang-kū)主要 (chú-iàu)是 (sī)包括 (pau-koah)磨針 (bôa-chiam) (bur),研磨 (géng-bôa)家私 (ke-si) (abrading tool),佮 (kap)梯金材 (thui-kim-châi) (polishing agent) 這 (chit)3類 (lūi)。包含 (Pau-hâm)的範圍 (hōan-ûi)誠闊 (chiâⁿ-khoah),對 (ùi)單 (tan)刀鋩 (to-mê)的戮鑽 (lak-chǹg) (twist drill) 到 (kàu)都 (to)刀鋩的切削的磨針,甚至 (sīm-chì)幾十的 (kúi-cha̍p-ê)刀鋩變成 (piàn-sêng)磨幼 (bôa-iù)功能 (kong-lêng)的磨針; 對碳鋼 (thoàⁿ-kǹg),鎢鋼 (o͘-kǹg),遮 (chia)上濟 (siāng-chē)幾十的刀鋩到渲石 (soān-chio̍h)磨針有 (ū)算未清 (sǹg-bē-chheng)的渲石粒仔 (lia̍p-á); 等到 (tán-kàu)梯金材,粒仔數揍 (sò͘-bok)閣 (koh)較 (khah)濟 (chē)。雖罔 (Sui-bóng)遮的濟濟 (chē-chē)家私的外表 (gōa-piáu)各樣 (koh-iūⁿ),切削功能差別 (chha-pia̍t)真大 (chin-tōa),怹 (in)攏 (lóng)仝款 (kāng-khoán)愛 (ài)經過 (keng-kòe)轉踅,紡 (pháng)的動作 (tōng-chok)才 (chiah)會使 (ē-sái)發揮 (hoat-hui)怹告別 (kò-pia̍t)的功能。 (讀全篇...)