Composite screw tap

The invention discloses a composite screw tap which comprises first tap teeth and second tap teeth. A sleeving hole coaxial with the first conical teeth is formed in the first conical teeth, and firstpin holes penetrating through the first conical teeth are formed in the radial direction of the slee...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIANG ZHAOBI, CHEN ZHENBIN, GAO ZHIFA, YU XUECONG, CHEN GUOLIANG, HUANG JINYONG, CHEN SHENGQIANG, HUANG MEIXIAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS THREAD CUTTING TRANSPORTING WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH
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