…Increasing taps come in a set of three like hand taps, but the outer diameter increases in the order of number 1, number 2, and number 3, and the regular thread diameter is finished with the number 3 tap. Machine taps and nut taps are long overall and are attached to a drill press or thread cutting machine, and the thread diameter is finished with one pass through a through hole. To cut a thread with a hand tap, it is necessary to repeatedly turn the tap handle to advance and return the tap. … *Some of the terminology that refers to "mechanical taps" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…増径タップはハンドタップと同じく3本1組となっているが,外径が1番,2番,3番の順に大きくなり,3番タップで正規のねじ径に仕上げる。機械タップ,ナットタップは全体が長く,ボール盤やねじ切盤に取り付けて用い,貫通穴を一度通過すればねじ径が仕上がる。ハンドタップでねじを切るには,タップハンドルを回してタップを進めてはもどす操作の繰返しが必要である。… ※「機械タップ」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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